Recent Publications (past 5 years)

  1. D. Xiao, W. Zhu, Y. Ran, N. Nagaosa, and S. Okamoto, “Interface engineering of quantum Hall effects in digital trnsition-metal oxide heterostructures,” Nat. Commun. 2:596 doi: 10.1038/ncomms1602 (2011).
  2. S. Okamoto, “Anomalous mass enhancement in strongly correlated quantum wells,” Phys. Rev. B 84, 201305(R) (2011).
  3. K.-Y. Yang, W. Zhu, D. Xiao, S. Okamoto, Z. Wang, and Y. Ran, “Possible interaction driven topological phases in (111) bilayers of LaNiO3,” Phys. Rev. B 84, 201104(R) (2011).
  4. M. Matsuo, S. Okamoto, W. Koshibae, M. Mori, and S. Maekawa, “Non-monotonic temperature dependence of thermopower in strongly correlated electron systems,” Phys. Rev. B 84, 153107 (2011).
  5. C.-W. Lee, R. K. Behera, S. Okamoto, R. Devanathan, E. D. Wachsman, S. R. Phillpot, and S. B. Sinnott, “Stabilization Mechanisms of LaFeO3 (010) Surfaces Determined with First Principles Calculations,” J. Am. Ceram. Soc., 94 [6] 1931-1939 (2011).
  6. J. Liu, S. Okamoto, M. van Veenendaal, M. Kareev, B. Gray, P. Ryan, J. W. Freeland, and J. Chakhalian, “Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3 superlattices,” Phys. Rev. B 83, 161102(R) (2011).
  7. 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, “Electronic and Magnetic Reconstructions in La0.7Sr0.3MnO3/SrTiO3 Heterostructures: A Case of Enhanced Interlayer Coupling Controlled by the Interface,” Phys. Rev. Lett. 106, 147205 (2011).
  8. J. Salafranca and S. Okamoto, “Unconventional proximity effect and inverse spin-switch behavior in a model manganite-cuprate-manganite trilayer system,” Phys. Rev. Lett. 105, 256804 (2010).
  9. S. Okamoto, D. Sénéchal, M. Civelli, and A.-M. Tremblay, “Dynamical electronic nematicity from Mott physics,” Phys. Rev. B 82, 180511(R) (2010).
  10. 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, “Spin and Orbital Ti Magnetism at LaMnO3/SrTiO3 Interfaces,” Nat. Commun. 1:82 doi: 10.1038/ncomms1080 (2010).
  11. 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, “Suppression of Octahedral Tilts and Associated Changes in Electronic Properties at Epitaxial Oxide Heterostructure Interfaces,” Phys. Rev. Lett. 105, 087204 (2010).
  12. S. Okamoto, “Magnetic interaction at an interface between manganite and other transition-metal oxides,” Phys. Rev. B 82, 024427 (2010).
  13. 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, “Interface Ferromagnetism and Orbital Reconstruction in BiFeO3-La0.7Sr0.3MnO3 Heterostructure,” Phys. Rev. Lett. 105, 027201 (2010).
  14. S. Okamoto and T. A. Maier, “Microscopic Inhomogeneity and Superconducting Properties of a Two-dimensional Hubbard Model for High-Tc Cuprates,” Phys. Rev. B 81, 214525 (2010).
  15. K. Yoshimatsu, T. Okabe, H. Kumigashira, S. Okamoto, S. Aizaki, A. Fujimori, and M. Oshima, “Dimensional-Crossover-Driven Metal-Insulator Transition in SrVO3 Ultrathin Films,” Phys. Rev. Lett. 104, 147601 (2010).
  16. R. S. Fishman and S. Okamoto, “Noncollinear magnetic phases of a triangular-lattice antiferromagnet and of doped CuFeO2,” Phys. Rev. B 81, 020402(R) (2010).
  17. 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, “Continuous metal-insulator transition of the antiferromagnetic perovskite NaOsO3,” Phys. Rev. B 80, 161104(R) (2009).
  18. R. S. Fishman, S. Okamoto, and J. S. Miller, “Molecule-based magnets with diruthenium building blocks in two and three dimensions,” Phys. Rev. B 80, 140416(R) (2009).
  19. R. S. Fishman, S. Okamoto, W. W. Shum, and J. S. Miller, “Giant antiferromagnetically coupled moments in a molecule-based magnet with interpenetrating lattices,” Phys. Rev. B 80, 064401 (2009).
  20. S. Okamoto, “Surface magnetic phase transition of the double-exchange ferromagnet: Schwinger-boson mean-field study,” J. Phys.: Condens. Matter 21, 355601 (2009).
  21. R. S. Fishman, S. Okamoto, and F. A. Reboredo, “Spin-orbit coupling and Jahn-Teller distortion in bimetallic oxalates,” Polyhedron 28, 1740 (2009).
  22. S. Okamoto and Th. A. Maier, “Enhanced Superconductivity in Superlattices of High-Tc Cuprates,” Phys. Rev. Lett. 101, 156401 (2008).
  23. R. S. Fishman, S. Okamoto, and F. A. Reboredo, “Inverse Jahn-Teller Transition in Bimetallic Oxalates,” Phys. Rev. Lett. 101, 116402 (2008).
  24. S. Okamoto, “Nonlinear Transport through Strongly Correlated Two-Terminal Heterostructures: A Dynamical Mean-Field Approach,” Phys. Rev. Lett. 101, 116807 (2008).
  25. I. González, S. Okamoto, S. Yunoki, A Moreo, and E. Dagotto, “Charge transfer in heterostructures of strongly correlated materials,” J. Phys.: Condens. Matter 20, 264002 (2008).
  26. K. Yamaura, M. Arai, A. Sato, A. B. Karki, D. P. Young, R. Movshovich, S. Okamoto, D. Mandrus, and E. Takayama-Muromachi, “NaV2O4: A Quasi-1D Metallic Antiferromagnet with Half-Metallic Chains,” Phys. Rev. Lett. 99, 196601 (2007).
  27. S. Yunoki, A. Moreo, E. Dagotto, S. Okamoto, S. S. Kancharla, A. Fujimori, “Electron Doping of Cuprates via Interfaces with Manganites,” Phys. Rev. B 76, No. 6, 064532 (2007).
  28. S. Okamoto, “Nonequilibrium transport and optical properties of model metal–Mott-insulator–metal heterostructures,” Phys. Rev. B 76, No. 3, 035105 (2007).
  29. A. Fuhrmann, S. Okamoto, H. Monien, and A. J. Millis, “Fictive-impurity approach to dynamical mean-field theory: A strong-coupling investigation,” Phys. Rev. B 75, No. 20, 205118 (2007).
  30. S. S. Kancharla and S. Okamoto, “Band insulator to Mott insulator transition in a bilayer Hubbard model,” Phys. Rev. B 75, 193103 (2007).
Full Publication list is here.