Publication List

Published Articles

Journals

  1. Spin and Orbital Orderings and Their Excitations in Perovskite Mn Oxides,
    J. Inoue, S. Ishihara, W. Koshibae, Y. Kawamura, S. Okamoto, and S. Maekawa,
    Czechoslovak Journal of Physics, Vol. 46 (1996), Suppl. S6, p.3225-3231. PDF
  2. Magnetic and Orbital Excitations in Manganese Oxides,
    W. Koshibae, S. Ishihara, Y. Kawamura, S. Okamoto, J. Inoue, and S. Maekawa,
    Physica B 230-232, 1058-1060 (1997). PDF
  3. Spin and Orbital Orderings in Perovskite Manganites,
    W. Koshibae, Y. Kawamura, S. Ishihara, S. Okamoto, J. Inoue, and S. Maekawa,
    Physica B 237-238, 48-50 (1997). PDF
  4. Raman Scattering by Orbital Waves in Perovskite LaMnO3,
    J. Inoue, S. Okamoto, S. Ishihara, W. Koshibae, Y. Kawamura, and S. Maekawa,
    Physica B 237-238, 51-53 (1997). PDF
  5. Interplay of Spin and Orbital Orderings in Perovskite Manganites,
    W. Koshibae, Y. Kawamura, S. Ishihara, S. Okamoto, J. Inoue, and S. Maekawa,
    J. Phys. Soc. Jpn. 66, No.4, 957-960 (1997). PDF
  6. Pressure Effects in Manganites with Layered Perovskite Structure,
    S. Ishihara, S. Okamoto, and S. Maekawa,
    J. Phys. Soc. Jpn. 66, No.10, 2965-2968 (1997). PDF
  7. Transition between Two Ferromagnetic States Driven by Orbital Ordering in La0.88Sr0.12MnO3,
    Y. Endoh, K. Hirota, S. Ishihara, S. Okamoto, Y. Murakami, A. Nishizawa, T. Fukuda, H. Kimura, H. Nojiri, K. Kaneko, and S. Maekawa,
    Phys. Rev. Lett. 82, No.21, 4328-4331 (1999). PDF
  8. Interrelation between Orbital Polarization and Magnetic Structure in Bilayer Manganites,
    T. Akimoto, Y. Moritomo, K. Ohoyama, S. Okamoto, S. Ishihara, S. Maekawa, and A. Nakamura,
    Phys. Rev. B 59, No.22, R14153-R14156 (1999). PDF
  9. Orbital Degree of Freedom and Phase Separation in Ferromagnetic Manganites at Finite Temperature,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Phys. Rev. B 61, No.1, 451-458 (2000). PDF
  10. Orbital Stability in the Spin-ordered Phase of Bilayer Manganites as Investigated by Neutron-diffraction Measurements,
    T. Akimoto, Y. Moritomo, K. Ohoyama, S. Okamoto, S. Ishihara, S. Maekawa, K. Hirota, and A. Nakamura,
    Phys. Rev. B 61, No.17, 11270-11273 (2000). PDF
  11. Phase Transition in Perovskite Manganites with Orbital Degree of Freedom,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Phys. Rev. B 61, No.21, 14647-14655 (2000). PDF
  12. Pressure-induced Insulator-Metal Transition in a Bilayer Manganite: Pressure Control of Orbital Stability,
    Y. Moritomo, K. Hirota, H. Nakao, T. Kiyama, Y. Murakami, S. Okamoto, S. Ishihara, S. Maekawa, M. Kubota, and H. Yoshizawa,
    Phys. Rev. B 62, No.1, 17-20 (2000). PDF
  13. Reconsideration of the Lattice Effect on the Charge-ordering Transition of Doped Manganites,
    A. Machida, Y. Moritomo, K. Ohoyama, S. Okamoto, S. Ishihara, S. Maekawa, and A. Nakamura,
    Phys. Rev. B 62, No.1, 80-83 (2000). PDF
  14. Orbital Structure and Magnetic Ordering in Layered Manganites: Universal Correlation and Its Mechanism,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Phys. Rev. B 63, No.10, 104401 (2001). PDF
  15. Observation of Orbital Waves as Elementary Excitations in a Solid,
    E. Saitoh, S. Okamoto, K. Takahashi, K. Tobe, K. Yamamoto, T. Kimura, S. Ishihara, S. Maekawa, and Y. Tokura,
    Nature 410, 180-183 (2001). PDF
  16. Roles of Electron Correlation and Orbital Degree of Freedom in Manganese Oxides,
    S. Ishihara, S. Okamoto, and S. Maekawa,
    Trans. Mat. Res. Soc. Jpn. 26, No.3, 963-966 (2001). PDF
  17. Field-induced Orbital Order-Disorder Transition in an A-type Antiferromagnetic Manganite: High-field Study of Nd0.45Sr0.55MnO3,
    T. Hayashi, N. Miura, K. Noda, H. Kuwahara, S. Okamoto, S. Ishihara, and S. Maekawa,
    Phys. Rev. B 65, No.2, 024408 (2002). PDF
  18. Orbital Ordering in LaMnO3: Electron-Electron and Electron-Lattice Interactions,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Phys. Rev. B 65, No.14, 144403 (2002). PDF
  19. Experimental Quest for Orbital Waves: Reply,
    E. Saitoh, S. Okamoto, K. Tobe, K. Yamamoto, T. Kimura, S. Ishihara, S. Maekawa, and Y. Tokura,
    Nature 418, 40 (2002). PDF
  20. Theory of Raman Scattering from Orbital Excitations in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Phys. Rev. B 66, No.1, 014435 (2002). PDF
  21. Quantum Behavior of Orbitals in Ferromagnetic Titanates: Novel Orderings and Excitations,
    G. Khaliullin and S. Okamoto,
    Phys. Rev. Lett. 89, No.16, 167201 (2002). PDF
  22. Magnetic Order and Dynamics in an Orbitally Degenerate Ferromagnetic Insulator,
    C. Ulrich, G. Khaliullin, S. Okamoto, M. Reehuis, A. Ivanov, H. He, Y. Taguchi, Y. Tokura, and B. Keimer,
    Phys. Rev. Lett. 89, No.16, 167202 (2002). PDF
  23. Fictive Impurity Models: an Alternative Formulation of the Cluster Dynamical Mean Field Method,
    S. Okamoto, A. J. Millis, H. Monien, and A. Fuhrmann,
    Phys. Rev. B 68, No.19, 195121 (2003). PDF
  24. Theory of Orbital State and Spin Interactions in Ferromagnetic Titanates,
    G. Khaliullin and S. Okamoto,
    Phys. Rev. B 68, No.20, 205109 (2003). PDF
  25. Ferromagnetic Insulating Phase in Pr1-xCaxMnO3,
    R. Kajimoto, H. Mochizuki, H. Yoshizawa, S. Okamoto, and S. Ishihara,
    Phys. Rev. B 69, No.5, 054433 (2004). PDF
  26. Electronic reconstruction at an interface between a Mott insulator and a band insulator,
    S. Okamoto and A. J. Millis,
    Nature 428, 630-633 (2004). PDF
  27. Theory of Mott insulator-band insulator heterostructure,
    S. Okamoto and A. J. Millis,
    Phys. Rev. B 70, No.7, 075101 (2004). PDF
  28. Electron-lattice Coupling, Orbital Stability and the Phase Diagram of Ca2-xSrxRuO4,
    S. Okamoto and A. J. Millis,
    Phys. Rev. B 70, No.19, 195120 (2004). PDF
  29. Spatial Inhomogeneity and Strong Correlation Physics: A Dynamical Mean-Field Study of a Model Mott-insulator—Band-insulator Heterostructure,
    S. Okamoto and A. J. Millis,
    Phys. Rev. B 70, No.24, 241104(R) (2004). PDF
  30. Benchmarkings for a semiclassical impurity solver for dynamical-mean-field theory: Self-energies and magnetic transitions of the single-orbital Hubbard model,
    S. Okamoto, A. Fuhrmann, A. Comanac, and A. J. Millis,
    Phys. Rev. B 71, No.23, 235113 (2005). PDF
  31. Interface ordering and phase competition in a model Mott-insulator-band-insulator heterostructure,
    S. Okamoto and A. J. Millis,
    Phys. Rev. B 72, No.23, 235108 (2005). PDF
  32. Dynamical mean-field study of model double-exchange superlattices,
    C. Lin, S. Okamoto, and A. J. Millis,
    Phys. Rev. B 73, No.23, 041104(R) (2006). PDF
  33. Lattice relaxation in oxide heterostructures: LaTiO3/SrTiO3 superlattices,
    S. Okamoto, A. J. Millis, and N. A. Spaldin,
    Phys. Rev. Lett. 97, No.5, 056802 (2006). PDF
  34. Photoemission from buried interfaces in SrTiO3/LaTiO3 superlattices,
    M. Takizawa,M, H. Wadati, K. Tanaka,M. Hashimoto, T. Yoshida, A. Fujimori, A. Chikamatsu, H. Kumigashira, M. Oshima, K. Shibuya, T. Mihara, T. Ohnishi, M. Lippmaa, M. Kawasaki, H. Koinuma, S. Okamoto, and A. J. Millis,
    Phys. Rev. Lett. 97, No.5, 057601 (2006). PDF
  35. Band insulator to Mott insulator transition in a bilayer Hubbard model,
    S. S. Kancharla and S. Okamoto,
    Phys. Rev. B 75, No. 19, 193103 (2007). PDF
  36. Fictive-impurity approach to dynamical mean-field theory: A strong-coupling investigation,
    A. Fuhrmann, S. Okamoto, H. Monien, and A. J. Millis,
    Phys. Rev. B 75, No. 20, 205118 (2007). PDF
  37. Nonequilibrium transport and optical properties of model metal–Mott-insulator–metal heterostructures,
    S. Okamoto,
    Phys. Rev. B 76, No. 3, 035105 (2007). PDF
  38. Electron Doping of Cuprates via Interfaces with Manganites,
    S. Yunoki, A. Moreo, E. Dagotto, S. Okamoto, S. S. Kancharla, A. Fujimori,
    Phys. Rev. B 76, No. 6. 064532 (2007). PDF
  39. NaV2O4: A Quasi-1D Metallic Antiferromagnet with Half-Metallic Chains,
    K. Yamaura, M. Arai, A. Sato, A. B. Karki, D. P. Young, R. Movshovich, S. Okamoto, D. Mandrus, and E. Takayama-Muromachi,
    Phys. Rev. Lett. 99, 196601 (2007). PDF
  40. Charge transfer in heterostructures of strongly correlated materials,
    I. González, S. Okamoto, S. Yunoki, A Moreo, and E. Dagotto,
    J. Phys.: Condens. Matter 20, 264002 (2008). PDF
  41. Inverse Jahn-Teller Transition in Bimetallic Oxalates,
    R. S. Fishman, S. Okamoto, and F. A. Reboredo,
    Phys. Rev. Lett. 101, 116402 (2008). PDF
  42. Nonlinear Transport through Strongly Correlated Two-Terminal Heterostructures: A Dynamical Mean-Field Approach,
    S. Okamoto,
    Phys. Rev. Lett. 101, 116807 (2008). PDF
  43. Enhanced Superconductivity in Superlattices of High-Tc Cuprates,
    S. Okamoto and Th. A. Maier,
    Phys. Rev. Lett. 101, 156401 (2008). PDF
  44. Spin-orbit coupling and Jahn-Teller distortion in bimetallic oxalates,
    R. S. Fishman, S. Okamoto, and F. A. Reboredo,
    Polyhedron 28, 1740 (2009). PDF
  45. Surface magnetic phase transition of the double-exchange ferromagnet: Schwinger-boson mean-field study,
    S. Okamoto,
    J. Phys.: Condens. Matter 21, 355601 (2009). PDF
  46. Giant antiferromagnetically coupled moments in a molecule-based magnet with interpenetrating lattices,
    R. S. Fishman, S. Okamoto, W. W. Shum, and J. S. Miller,
    Phys. Rev. B 80, 064401 (2009). PDF
  47. Molecule-based magnets with diruthenium building blocks in two and three dimensions,
    R. S. Fishman, S. Okamoto, and J. S. Miller,
    Phys. Rev. B 80, 140416(R) (2009). PDF
  48. Continuous metal-insulator transition of the antiferromagnetic perovskite NaOsO3,
    Y. G. Shi, Y. F. Guo, S. Yu, M. Arai, A. A. Belik, A. Sato, K. Yamaura, E. Takayama-Muromachi, H. F. Tian, H. X. Yang, J. Q. Li, T. Varga, J. F. Mitchell, and S. Okamoto,
    Phys. Rev. B 80, 161104(R) (2009). PDF
  49. Noncollinear magnetic phases of a triangular-lattice antiferromagnet and of doped CuFeO2,
    R. S. Fishman and S. Okamoto,
    Phys. Rev. B 81, 020402(R) (2010). PDF
  50. Dimensional-Crossover-Driven Metal-Insulator Transition in SrVO3 Ultrathin Films,
    K. Yoshimatsu, T. Okabe, H. Kumigashira, S. Okamoto, S. Aizaki, A. Fujimori, and M. Oshima,
    Phys. Rev. Lett. 104, 147601 (2010). PDF
  51. Microscopic Inhomogeneity and Superconducting Properties of a Two-dimensional Hubbard Model for High-Tc Cuprates,
    S. Okamoto and T. A. Maier,
    Phys. Rev. B 81, 214525 (2010). PDF
  52. Interface Ferromagnetism and Orbital Reconstruction in BiFeO3-La0.7Sr0.3MnO3 Heterostructure,
    P. Yu, J.-S. Lee, S. Okamoto, M. D. Rossell, M. Huijben, C.-H. Yang, Q. He, J. X. Zhang, S.Y. Yang, M. J. Lee, Q. M. Ramasse, R. Erni, Y.-H. Chu, D. A. Arena, C.-C. Kao, L.W. Martin, and R. Ramesh,
    Phys. Rev. Lett. 105, 027201 (2010). PDF
  53. Magnetic interaction at an interface between manganite and other transition-metal oxides,
    S. Okamoto,
    Phys. Rev. B 82, 024427 (2010). PDF
  54. Suppression of Octahedral Tilts and Associated Changes in Electronic Properties at Epitaxial Oxide Heterostructure Interfaces,
    A. Y. Borisevich, H. J. Chang, M. Huijben, M. P. Oxley, S. Okamoto, M. K. Niranjan, J. D. Burton, E.Y. Tsymbal, Y. H. Chu, P. Yu, R. Ramesh, S. V. Kalinin, and S. J. Pennycook,
    Phys. Rev. Lett. 105, 087204 (2010). PDF
  55. Spin and Orbital Ti Magnetism at LaMnO3/SrTiO3 Interfaces,
    J. Garcia-Barriocanal, J. C. Cezar, F. Y. Bruno, P. Thakur, N. B. Brookes, C. Utfeld, A. Rivera-Calzada, S. R. Giblin, J. W. Taylor, J. A. Duffy, S. B. Dugdale, T. Nakamura, K. Kodama, C. Leon, S. Okamoto, and J. Santamaria,
    Nat. Commun. 1:82 doi: 10.1038/ncomms1080 (2010). PDF
  56. Dynamical electronic nematicity from Mott physics,
    S. Okamoto, D. Sénéchal, M. Civelli, and A.-M. Tremblay,
    Phys. Rev. B 82, 180511(R) (2010). PDF
  57. Unconventional proximity effect and inverse spin-switch behavior in a model manganite-cuprate-manganite trilayer system,
    J. Salafranca and S. Okamoto,
    Phys. Rev. Lett. 105, 256804 (2010). PDF
  58. Electronic and Magnetic Reconstructions in La0.7Sr0.3MnO3/SrTiO3 Heterostructures: A Case of Enhanced Interlayer Coupling Controlled by the Interface,
    F. Y. Bruno, J. Garcia-Barriocanal, M. Varela, N. M. Nemes, P. Thakur, J. C. Cezar, N. B. Brookes, A. Rivera-Calzada, M. Garcia-Hernandez, C. Leon, S. Okamoto, S. J. Pennycook, J. Santamaria,
    Phys. Rev. Lett. 106, 147205 (2011). PDF
  59. Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3 superlattices,
    J. Liu, S. Okamoto, M. van Veenendaal, M. Kareev, B. Gray, P. Ryan, J. W. Freeland, and J. Chakhalian,
    Phys. Rev. B 83, 161102(R) (2011). PDF
  60. Stabilization Mechanisms of LaFeO3 (010) Surfaces Determined with First Principles Calculations,
    C.-W. Lee, R. K. Behera, S. Okamoto, R. Devanathan, E. D. Wachsman, S. R. Phillpot, and S. B. Sinnott,
    J. Am. Ceram. Soc., 94 [6] 1931-1939 (2011). PDF
  61. Non-monotonic temperature dependence of thermopower in strongly correlated electron systems,
    M. Matsuo, S. Okamoto, W. Koshibae, M. Mori, and S. Maekawa,
    Phys. Rev. B 84, 153107 (2011). PDF
  62. Possible interaction-driven topological phases in (111) bilayers of LaNiO3,
    K.-Y. Yang, W. Zhu, D. Xiao, S. Okamoto, Z. Wang, and Y. Ran,
    Phys. Rev. B 84, 201104(R) (2011). PDF
  63. Anomalous mass enhancement in strongly correlated quantum wells,
    S. Okamoto,
    Phys. Rev. B 84, 201305(R) (2011). PDF
  64. Interface engineering of quantum Hall effects in digital transition metal oxide heterostructures,
    D. Xiao, W. Zhu, Y. Ran, N. Nagaosa, and S. Okamoto,
    Nat. Commun. 2:596 doi: 10.1038/ncomms1602 (2011).
  65. Spontaneous fourfold-symmetry breaking driven by electron-lattice coupling and strong correlations in high-Tc cuprates,
    S. Okamoto and N. Furukawa,
    Phys. Rev. B 86, 094522 (2012). PDF
  66. Doped Mott Insulators in (111) Bilayers of Perovskite Transition-Metal Oxides with the Strong Spin-Orbit Coupling,
    S. Okamoto,
    Phys. Rev. Lett. 110, 066403 (2013). PDF
  67. Oxide Heterostructures for Efficient Solar Cells,
    E. Assmann, P. Blaha, R. Laskowski, K. Held, S. Okamoto, and G. Sangiovanni,
    Phys. Rev. Lett. 110, 078701 (2013). PDF Also, see Physics Synopsis: Building Better Solar Cells, Layer by Layer.
  68. Global phase diagram of a doped Kitaev-Heisenberg model,
    S. Okamoto,
    Phys. Rev. B 87, 064508 (2013). PDF
  69. Gradual localization of Ni 3d states in LaNiO3 ultrathin films induced by dimensional crossover,
    E. Sakai, M. Tamamitsu, K. Yoshimatsu, S. Okamoto, K. Horiba, M. Oshima, and H. Kumigashira,
    Phys. Rev. B 87, 075132 (2013). PDF

Thesis

    Theory of Orbital Ordering and Fluctuation in Manganese Oxides,
    S. Okamoto,
    Ph.D thesis, Tohoku University (2001).

Review articles

  1. Strongly-Correlated Heterostructures,
    S. Okamoto,
    Multifunctional Oxide Heterostructures, Eds. E. Y. Tsymbal, E. R. A. Dagotto, C.-B. Eom, and R. Ramesh (Oxford University Press, 2012), p.214-253, ISBN: 978-0-19-958412-3.

Proceedings

  1. Two Ferromagnetic States in Magnetoresistive Manganites -First Order Transition Driven by Orbitals,
    S. Maekawa, S. Ishihara, and S. Okamoto,
    Proceedings of Conference on Physics Manganites, held July 26-29 1998 at Michigan (Prenum Press).
  2. Field Induced Transition from Metal to Insulator in the CMR Manganites,
    Y. Endoh, H. Nojiri, K. Kaneko, K. Hirota, T. Fukuda, H. Kimura, Y. Murakami, S. Ishihara, S. Okamoto, and S. Maekawa,
    Proceedings of the 7th NEC symposium 'Phase Control in Spin-Charge-Orbital Complex System' on Oct. 11-15 1998 [Materials Science and Engennering B 56 No.1-4, 151-158 (1999) (Elsevier Science)].
  3. Roles of Orbitals in Transition Metal Oxides,
    Y. Endoh, H. Hirota, Y. Murakami, H. Nojiri, S. Ishihara, S. Maekawa, H. Kimura, T. Fukuda and S. Okamoto,
    Physics and Chemistry of Transition Metal Oxides, eds. H. Fukuyama et al. [Springer Series in Solid State Sciences 125, (1999) p.69-83].
  4. Roles of Orbital in Colossal Magnetoresistive Manganites,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Proceedings of Science and Technology of Magnetic Oxides '99, Frontier-Science Research Conferences (La Jolla, CA, 1999).
  5. A Theory of Orbital Dynamics and their Observation by Polarized Light/X-ray Scatterings,
    S. Ishihara, H. Kondo, S. Okamoto, and S. Maekawa,
    Proceedings of International Conference on Strongly Correlated Electrons with Orbital Degrees of Freedom, ORBITAL2001 (Sendai, 2001).
  6. Dynamics of Orbital Degree of Freedom in Transition-Metal Oxides,
    S. Ishihara, S. OKamoto, and S. Maekawa,
    Proceedings of Todai International Symposium ISSP-Kashiwa 2001, Correlated Electrons (Kashiwa, 2001) [J. Phys. Chem. Solids 63, No. 6-8, 1343-1346 (2002)].
  7. Interface Phenomena in Correlated Electron systems,
    S. Okamoto and A. J. Millis,
    Proceedings of the International Conference on Strongly Correlated Electron Systems, SCES '04 (July 26-30, Karlsruhe, Germany, 2004) [Physica B: Condensed Matter 359-361, 1378-1380 (2005)]. PDF
  8. Electronic reconstruction in correlated electron heterostructures,
    S. Okamoto and A. J. Millis,
    Proceedings of SPIE conference on Strongly Correlated Electron Materials: Physics and Nanoengineering (July 31-Aug. 4, San Diego, 2005) [Proc. SPIE Int. Soc. Opt. Eng. 5932, 593218 (2005)]. PDF

Japanese Articles

  1. Observation of New Elementary Excitation "Orbital Wave",
    S. Okamoto and E. Saitoh,
    Solid State Physics, 36, No.8, 489 (AGNE, 2001).

Conferences

JPS Meeting

  1. Mean Field Theory in Ferromagnetic Manganese Oxides,
    S. Okamoto, W. Koshibae, J. Inoue, and S. Maekawa,
    52nd Annual Meeting (Nagoya) Mar. 31, 1997.
  2. Spin and Orbital Orderings in Layered Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    52nd Section Meeting (Kobe) Oct. 7, 1997.
  3. Orbital Degrees of Freedom and Phase Separation in Mn Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    53rd Annual Meeting (Chiba) Mar. 30, 1998.
  4. Orbital Degrees of Freedom and Phase Separation in Mn Oxides II,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    53rd Section Meeting (Okinawa) Sep. 26, 1998.
  5. Orbital Degrees of Freedom and Phase Transition in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    54th Annual Meeting (Hiroshima) Mar. 29, 1999.
  6. Orbital Degrees of Freedom and First Order Transition in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    54th Section Meeting (Iwate) Sep. 25, 1999.
  7. Stability of eg Orbital and Magnetic Structure in Layered Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    55th Section Meeting (Osaka) Mar. 25, 2000.
  8. Theory of Orbital Excitation and Raman Scattering in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    55th Annual Meeting (Niigata) Sep. 24, 2000.
  9. Electron-Electron Interaction and Electron-Lattice Interaction in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    56th Annual Meeting (Tokyo) March 28, 2001.
  10. Orbital Ordering and Magnetic Interaction in Ferromagnetic Titanates,
    S. Okamoto and G. Khaliullin,
    57th Section Meeting (Kasugai) Sep. 6, 2002.

Organized Workshops

  1. Strongly Correlated Electron Workshop on Oxide Heterostructures,
    Oak Ridge National Laboratory, June 17-18 (2008),
    Organizers: S. Okamoto (chair) & E. Dagotto (co-chair).

Workshops

  1. Orbital Degree of Freedom and Phase Transition in Perovskite Manganites,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    The First Workshop ``Novel Quantum Phenomena in Transition Metal Oxides'' Complex Phenomena of Correlated Electrons in Oxides (Sendai) Nov. 15-17, 1999.
    (poster)
  2. Theory of Orbital Excitation and Raman Scattering in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Workshop focussed on Research Reports ``Novel Quantum Phenomena in Transition Oxides'' Complex Phenomena of Correlated Electrons in Oxides (Sendai) Jan. 8-10, 2001.
    (poster)
  3. Orbital Ordering and Magnetic Interaction in Ferromagnetic Titanates,
    S. Okamoto and G. Khaliullin,
    Yukawa Institute for Theoretical Physics Workshop ``Development of the Theory of Strongly Correlated Electrons with Orbital Degrees of Freedom'' (Kyoto) Nov. 25-26, 2002.
    (poster)
  4. Orbital Ordering and Magnetic Interaction in Ferromagnetic Titanates,
    S. Okamoto and G. Khaliullin,
    Workshop forcussed on Research Reports ``Novel Quantum Phenomena in Transition Oxides'' Complex Phenomena of Correlated Electrons in Oxides (Kashiwa) Jan. 8-10, 2003
    (oral 15min)
  5. Enhanced Superconductivity in Superlattices of High-Tc Cuprates,
    S. Okamoto,
    Strongly Correlated Electron Workshop on Oxide Heterostructures,
    Oak Ridge National Laboratory, June 17-18, 2008
    (oral 30min)

International Conferences

  1. Roles of Orbital in Colossal Magnetoresistive Manganites,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    Science and Technology of Magnetic Oxides '99, Frontier-Science Research Conferences (La Jolla, CA) July 5-7, 1999.
    (invited talk, oral 25min)
  2. Raman Scattering from Orbital Excitations in Manganese Oxides,
    Satoshi Okamoto, Sumio Ishihara, and Sadamichi Maekawa,
    Todai International Symposium ISSP-Kashiwa 2001, Correlated Electrons (Kashiwa) Oct. 2-5, 2001.
    (poster)
  3. Interface Phenomena in Correlated Electron Systems,
    Satoshi Okamoto and Andrew J. Millis,
    Gordon Research Conference on Correlated Electron Systems (Mount Holyoke College, South Hadley, MA) June 20-25, 2004.
    (poster)
  4. Interface Phenomena in Correlated Electron Systems,
    Satoshi Okamoto and Andrew J. Millis,
    SCES '04 (Karlsruhe, Germany) June 26-30, 2004.
    (oral 15min)
  5. Interface Phenomena in Correlated Electron Systems,
    Satoshi Okamoto and Andrew J. Millis,
    SPIE conference on Strongly Correlated Electron Materials: Physics and Nanoengineering (San Diego) July 31-Aug. 4, 2005.
    (invited talk, oral 30min)
  6. Recent Progress in Correlated-Electron Interfaces,
    Satoshi Okamoto,
    ICM2006 (Kyoto) Aug. 20-Aug. 25, 2006.
    (oral 12min)
  7. Theoretical study of correlated-electron interfaces of complex oxides,
    Satoshi Okamoto,
    14th Semiconducting and Insulating Materials Conference (Arkansas) May 15-20, 2007.
    (invited talk, oral 25min)
  8. Strongly correlated electrons in heterostructures: Transport, magnetism, and superconductivity,
    Satoshi Okamoto,
    Villa Conference on Complex Oxide Heterostructures (Clemont, FL) Nov. 2-6, 2008.
    (invited talk, oral 30min)
  9. Strongly Correlated Electrons in Heterostructures: Transport, Magnetism, and Superconductivity,
    Satoshi Okamoto,
    MRS 2009 Spring meeting (San Francisco, CA) Apr. 13-17, 2009.
    (invited talk, oral 30min)
  10. Theoretical Study of Strongly-Correlated Heterostructures,
    Satoshi Okamoto,
    KITP conference, Novel Correlated Materials (Kavli Institute for Theoretical Physics, UCSB, Santa Barbara, CA) Feb. 8-12, 2010.
    (invited talk, oral 30min)
  11. Magnetic interaction at an interface between manganite and other transition-metal oxides,
    Satoshi Okamoto,
    Villa Conference on Complex Oxide Heterostructures (Las Vegas, NV) April 21-23, 2011.
    (invited talk, oral 30min)

APS Meeting

  1. Orbital Degrees of Freedom and Phase Separation in Perovskite Manganites,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    1999 Centennial Meeting (Atlanta, GA) Mar. 23, 1999.
  2. Stability of eg orbitals and magnetic ordering in bilayered manganites,
    S. Maekawa, S. Okamoto, and S. Ishihara,
    March 2000 Meeting (Minneapolis, MN) Mar. 21, 2000.
  3. Phase Transition in Cubic Perovskite Manganites with Orbital Degree of Freedom,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    March 2000 Meeting (Minneapolis, MN) Mar. 21, 2000.
  4. Theory of Orbital Excitation and Raman Scattering in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    March 2001 Meeting (Seattle, WA) Mar. 15, 2001.
  5. Orbital Ordering and Magnetic Interaction in Ferromagnetic Titanates,
    S. Okamoto and G. Khaliullin,
    March 2003 Meeting (Austin, TX) Mar. 4, 2003.
  6. Theory of Mott insulator/band insulator heterostructure,
    S. Okamoto and A. J. Millis,
    March 2004 Meeting (Montreal, Québec, Canada) Mar. 24, 2004.
  7. Electronic Reconstruction in Correlated Electron Heterostructures,
    S. Okamoto,
    March 2005 Meeting (Los Angeles, California) Mar. 22, 2005.
    (invited talk)
  8. Lattice relaxation, electronic screening, and spin and orbital phase diagram of LaTiO3/SrTiO3 superlattices,
    S. Okamoto, A. J. Millis, and N. A. Spaldin,
    March 2006 Meeting (Baltimore, Maryland) Mar. 14, 2006.
  9. Electron doping of cuprates via interfaces with manganites,
    E. Dagotto, S. Okamoto, S. Yunoki, A. Moreo, S. Kancharla, and A. Fujimori,
    March 2008 Meeting (New Orleans, Louisiana) Mar. 11, 2008.
  10. Nonlinear transport properties of model metal--Mott-insulator--metal heterostructures,
    S. Okamoto,
    March 2008 Meeting (New Orleans, Louisiana) Mar. 13, 2008.
  11. Enhanced Superconductivity in Superlattices of High-Tc Cuprates,
    S. Okamoto and T. A. Maier,
    March 2009 Meeting (Pittsburgh, Pennsylvania) Mar. 17, 2009.
  12. Magnetic interaction at an interface between manganite and other transition-metal oxides,
    S. Okamoto, P. Yu, and R. Ramesh,
    March 2010 Meeting (Portland, Oregon) Mar. 17, 2010.
  13. Dynamical electronic nematicity from Mott physics,
    S. Okamoto, D. Sénéchal, M. Civelli, and A.-M. Tremblay,
    March 2011 Meeting (Dallas, Texas) Mar. 25, 2011.
  14. Interface engineering of quantum Hall effects in digital transition-metal oxide heterostructures
    S. Okamoto, D. Xiao, W. Zhu, Y. Ran, and N. Nagaosa,
    March 2012 Meeting (Boston, Massachusetts) Mar. 2, 2012. (talk given by D. Xiao)
  15. Doped Mott insulators in (111) bilayers of perovskite transition-metal oxides with the strong spin-orbit coupling,
    S. Okamoto,
    March 2013 Meeting (Baltimore, Maryland) Mar. 20, 2013.

International Workshops

  1. Spin and Orbital Phase Diagram in Perovskite Manganites,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    1999 JRCAT Workshop, Complex Phenomena of Correlated Electrons in Oxides (Hawaii, HI) May 26-29, 1999.
    (poster)
  2. Orbital Structure and Magnetic Ordering in Layered Manganites,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    2000 IIAS-JRCAT Workshop, Phase Control of Correlated Electron Systems (Kyoto) May 31-June 3, 2000.
    (poster)
  3. Raman Scattering from Orbital Excitation in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    2001 JRCAT-CERC Workshop, Phase Control of Correlated Electron Systems (Maui, HI) June 6-9, 2001.
    (oral 10min)
  4. Raman Scattering from Orbital Excitaions in Manganese Oxides,
    S. Okamoto, S. Ishihara, and S. Maekawa,
    The 2nd International Workshop on ``Novel Quantum Phenomena in Transition Metal Oxides'' (Sendai) Aug. 23-25, 2001.
    (oral 10min)
  5. Novel Orbital Ordering in Ferromagnetic Titanates,
    Satoshi Okamoto and Giniyat Khaliullin,
    International Workshop on Future of Muon Science (Tsukuba/Wako) March 7-9, 2002.
    (poster)
  6. Orbital Ordering and Magnetic Interaction in Ferromagnetic Titanates,
    S. Okamoto and G. Khaliullin,
    International Workshop on Physics, Many-body Problems and Beyond (Tokyo) Oct. 9-10, 2002.
    (poster)
  7. Fictive Impurity Models: an Alternative Formulation of the Cluster Dynamical Mean Field Method,
    S. Okamoto, A. J. Millis, H. Monien, and A. Fuhrmann,
    2003 JRCAT-CERC Workshop, Phase Control of Correlated Electron Systems (Maui, HI) Oct. 1-4, 2003.
    (poster)
  8. Theory of Mott Insulator/Band Insulator Heterostructure,
    S. Okamoto and A. J. Millis,
    DOE-NSET Workshop on Artificially Structured Nanomaterials: Formation and Properties (Gatllinburg, TN) Oct. 13-15, 2003.
    (poster)
  9. Fictive Impurity Models: an Alternative Formulation of the Cluster Dynamical Mean Field Method,
    S. Okamoto, A. J. Millis, H. Monien, and A. Fuhrmann,
    The 3rd International Workshop on Novel Quantum Phenomena in Transition Metal Oxides and The 1st Asia-Pacific Workshop on ``Strongly Correlated Electron Systems'' (Sendai) Nov. 5-8, 2003.
    (poster)
  10. Theory of Mott Insulator/Band Insulator Heterostructure,
    S. Okamoto and A. J. Millis,
    The 3rd International Workshop on Novel Quantum Phenomena in Transition Metal Oxides and The 1st Asia-Pacific Workshop on ``Strongly Correlated Electron Systems'' (Sendai) Nov. 5-8, 2003.
    (poster, post-deadline presentation)
  11. Interface Phenomena in Correlated Electron Systems,
    Satoshi Okamoto and Andrew J. Millis,
    Workshop on Novel States and Phase Transitions in Highly Correlated Matter, (ICTP, Trieste, Italy) July 12-23, 2004.
    (poster & oral 15min, short presentation)
  12. Electronic reconstruction in correlated electron heterostructures,
    Satoshi Okamoto,
    Workshop on Nanoscale Fluctuations in Magnetic and Superconducting Systems, (MPI PKS, Dresden, Germany) May 10-14, 2005.
    (oral 20min)
  13. Electronic reconstruction in correlated electron heterostructures,
    Satoshi Okamoto,
    2005 NSLS Users' Meeting, (BNL, New York, USA) May 23-25, 2005.
    (invited talk,, oral 45min)
  14. Theory of correlated-electron interfaces,
    Satoshi Okamoto,
    12th International Workshop on Oxide Electronics, (Chatham, Cape Cod, Massachusetts, USA) Oct. 2-5, 2005.
    (poster)
  15. Theory of Correlated-Electron Interfaces,
    Satoshi Okamoto,
    3rd COLLECT annual meeting, (Columbia University, New York, New York, USA) Oct. 20-22, 2005.
    (oral 20min)
  16. Enhanced superconductivity in superlattices of high-Tc cuprates,
    S. Okamoto,
    Fall 2008 Coordination Meeting, DOE/BES Computational Materials Science Network “Predictive Capabilities for Strongly-Correlated Systems” (Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA) Nov. 14-16, 2008.
    (invited talk, oral 40min)
  17. Application of the dynamical-mean-field method for strongly correlated heterostructures,
    Satoshi Okamoto,
    Workshop on Next Generation Integrated Nanoscience Simulation Software (Institute for Materials Research, Tohoku University, Sendai, Japan) Dec 10-11, 2008.
    (invited talk, oral 30min)
  18. Theoretical study of strongly correlated heterostructures,
    Satoshi Okamoto,
    Inter-phase: Novel Electronic States at Interfaces in Oxides (Lorentz Center, Leiden University, Leiden, Netherlands) April 26-29, 2010.
    (invited talk, oral 40min)
  19. Theoretical Study of Strongly-Correlated Heterostructures,
    Satoshi Okamoto,
    Workshop on the Physics of Complex Oxides (Santorini, Greece) June 14-17, 2010.
    (invited talk, oral 30min)
  20. Anomalous behavior of strongly correlated electrons with spatial inhomogeneity,
    Satoshi Okamoto,
    RIKEN-ASI Theory Forum Topical Meeting (RIKEN, Wako, Japan) Sep. 1-2, 2010.
    (invited talk, oral 30min)

Seminars

  1. Roles of Orbital in Colossal Magnetoresistive Manganites,
    Prof. Z.-X.Shen's group, Stanford University (Stanford, CA) July 8, 1999.
  2. Theory of Orbital Ordering and Fluctuation in Manganese Oxides (in Japanese),
    Muon Science Lab. (K. Magamine group), RIKEN (Wako, Saitama) Feb. 13, 2001.
  3. Theory of Orbital Ordering and Fluctuation in Manganese Oxides (in Japanese),
    Department of Physics, Nihon University, (Ochanomizu, Tokyo) June 15, 2001.
  4. Theory of Orbital Ordering and Fluctuation in Manganese Oxides (in Japanese),
    Prof. Y. Ohta's group, Department of Physics, Chiba University, (Nishi Chiba, Chiba) June 21, 2001.
  5. Re-examination of Orbital Ordering in Manganites,
    Prof. B. Keimer's group, Max-Planck-Institute für Festkörperforschung, (Stuttgart, Germany) Nov. 16, 2001.
  6. Quantum behavior of Orbitals in Ferromagnetic Titanates (in Japanese),
    Prof. S. Maekawa's group, IMR, Tohoku University, (Sendai, Miyagi) Jan. 23, 2002.
  7. Quantum behavior of Orbitals in Ferromagnetic Titanates (in Japanese),
    Prof. K. Nagamine's group, KEK, (Tsukuba, Ibaraki) Apr. 12, 2002.
  8. Magnetic Interaction in Ferromagnetic Titanates: Effects of Lattice Distortions,
    Prof. B. Keimer's group, Max-Planck-Institute für Festkörperforschung, (Schross Ringberg at Tegerensee, Germany) Jan. 30, 2003.
  9. Theory of Mott Insulator/Band Insulator Heterostructure,
    Prof. H. Y. Hwang's group, Graduate School of FrontierSciences General Research, University of Tokyo, (Kashiwa, Chiba) Jan. 29, 2004.
  10. Theory of Mott Insulator/Band Insulator Heterostructure,
    Prof. S. Maekawa's group, IMR, Tohoku University, (Sendai, Miyagi) Feb. 2, 2004.
  11. Theory of Mott Insulator/Band Insulator Heterostructure,
    Host: Prof. N. Nagaosa, Correlated Electron Research Center, (Tsukuba, Ibaraki) Feb. 4, 2004.
  12. Electronic Reconstruction in Correlated Electron Heterostructures,
    Host: Prof. G. Kotliar, Department of Physics, Rutgers University, (Piscataway, New Jersey, USA) March 11, 2005.
  13. Electronic Reconstruction in Correlated Electron Heterostructures,
    Host: Prof. J. Inoue, Department of Applied Physics, Nagoya University, (Nagoya, Aichi) April 15, 2005.
  14. Electronic Reconstruction in Correlated Electron Heterostructures,
    Host: Prof. N. Spaldin, Materials Research Latoratory, (Santa Barbara, California, USA) July 20, 2005.
  15. Theory of correlated-electron interfaces,
    Condensed Matter Science Division, Oak Ridge National Laboratory, (Oak Ridge, Tennessee, USA) Oct. 18, 2005.
  16. Theory of correlated-electron interfaces,
    Department of Physics, University of Waterloo, (Waterloo, Ontario, Canada) Jan. 10, 2006.
  17. Theory of correlated-electron interfaces,
    Condensed Matter Science Division, Oak Ridge National Laboratory, (Oak Ridge, Tennessee, USA) Jan. 23, 2006.
  18. Theory of correlated-electron interfaces,
    Host: Prof. Joerg Schmalian, Department of Physics, Ames Laboratory, Iowa State University, (Ames, Iowa, USA) March 30, 2006.
  19. Theory of correlated-electron interfaces,
    Host: Prof. Andre-Marie Tremblay, Départment de Physique, Université de Sherbrooke, (Sherbrooke, Québec, Canada) May 16, 2006.
  20. Theory of correlated-electron interfaces,
    Host: Dr. Anand Bhattacharya, Materials Science Division, Argonne National Laboratory, (Argonne, Illinois, USA) May 24, 2006.
  21. Theory of correlated-electron interfaces,
    Host: Prof. Sohrab Ismail-Beigi, Department of Applied Physics, Yale University, (New Haven, Connecticut, USA) June 2, 2006.
  22. Theory of Interface Phenomena in Correlated-electron Heterostructures,
    Host: Prof. Victor Barzykin, Department of Physics, University of Tennessee, (Knoxville, Tennessee, USA) Apr. , 2007.
  23. Theory of electronic reconstruction in correlated-electron heterostructures,
    Host: Prof. Rafi Budakian, Department of Physics, University of Illinois at Urbana Champaign, (Urbana Champaign, Illinois, USA) Sep. 14, 2007.
  24. Theory of electronic reconstruction in correlated-electron heterostructures,
    Host: Prof. Jong Han, Department of Physics, University of Buffalo, (Buffalo, New York, USA) Sep. 22, 2007.
  25. Recent theoretical development on correlated-electron heterostructures,
    Host: Prof. Branislav Nikolic, Department of Physics, University of Delaware, (Newark, Delaware, USA) Oct. 16, 2007.
  26. Strongly correlated electrons in heterostructures: Transport, magnetism, and superconductivity -recent theoretical topics-,
    Host: Prof. Harold Y. Hwang, Graduate School of FrontierSciences General Research, University of Tokyo, (Kashiwa, Chiba) Dec. 4, 2008.
  27. Recent theoretical topics of strongly-correlated heterostructures,
    Host: Prof. Atsushi Fujimori, Department of Physics, University of Tokyo, (Hongo, Tokyo) Dec. 5, 2008.
  28. Strongly correlated electrons in heterostructures: transport, magnetism, and superconductivity,
    Host: Dr. Kazunari Yamaura, National Institute for Materials Science (Tsukuba, Ibaraki) Dec. 8, 2008.
  29. Strongly correlated electrons in heterostructures: Transport, magnetism, and superconductivity -recent theoretical topics-,
    Host: Dr. Shigeki Onoda, the Institute of Physical and Chemical Research (Wako, Saitama) Dec. 17, 2008.
  30. Theoretical Study of Strongly-Correlated Heterostructures,
    Host: Prof. Andre-Marie Tremblay, Départment de Physique, Université de Sherbrooke, (Sherbrooke, Québec, Canada) May. 19, 2010.
  31. Interfacial Effect Involving High-Tc Superconducting Cuprates,
    Host: Prof. Jak Chakhalian, Department of Physics, University of Arkansas, (Fayetteville, Arkansas, USA) Nov. 5, 2010.
  32. Interfacial Effect Involving High-Tc Superconducting Cuprates,
    Host: Prof. Ribhu Kaul, Department of Physics, University of Kentucky, (Lexington, Kentucky, USA) March 8, 2011.
  33. Correlated oxide heterostructures,
    Host: Prof. Di Xiao, Department of Physics, Carnegie Mellon University, (Pittsburgh, Pennsylvania, USA) Nov. 15, 2012.
  34. Interface engineering of novel quantum phenomena in digital transition metal oxide heterostructures,
    Host: Prof. Yong Baek Kim, Department of Physics, University of Toronto, (Toronto, Ontario, Canada) Feb. 20, 2013.

Awards

  1. Aoba award, Mar. 8, 2001.
  2. IUPAP young scientist prize for theoretical/computational work in magnetism,
    in recognition of his fundamental theoretical work establishing the properties of orbiton excitations in magnetic materials, and the physical ideas for determining the electronic properties of oxide heterostructure interfaces, Aug. 20, 2006.
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