Douglas L Abernathy Distinguished Scientist and Group Leader, Direct Geometry Spectroscopy Contact ABERNATHYDL@ORNL.GOV All Publications Inelastic neutron scattering study of phonon density of states in nanostructured Si1−xGex thermoelectrics... Quantum oscillations of nitrogen atoms in uranium nitride... Neutron Scattering Studies of spin excitations in hole-doped Ba0.67K0.33Fe2As2 superconductor ... Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2 Magnetic excitations in underdoped Ba (Fe_1-x Co_x)_2 As_2 with x =0.047 Absence of long-range chemical ordering in equimolar FeCoCrNi Bose-Einstein Condensation in liquid $^4$He near the liquid-solid transition line. Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source Role of Magnetic Exchange Energy on Charge Ordering in R1/3Sr2/3FeO3 (R = La, Pr, and Nd)... Structural relationship between negative thermal expansion and quartic anharmonicity of cubic ScF3... Antiferromagnetic spin excitations in single crystals of nonsuperconducting Li$_{1-x}$FeAs... Symmetry-breaking dynamical pattern and localization observed in the high-temperature vibrational spectrum of NaI... Ultrathin aluminum sample cans for single crystal inelastic neutron scattering Dynamics of water confined on the surface of titania and cassiterite nanoparticles... Phonon softening and metallization of a narrow-gap semiconductor by thermal disorder... Spin waves in the ( Neutron powder diffraction using the ARCS chopper spectrometer at the Spallation Neutron Source Anisotropic and quasi-propagating spin excitations in optimally-doped superconducting Ba(Fe0.926Co0.074)2As2... Phonon density of states of model ferroelectrics... Effect of chemical composition and B2 order on phonons in bcc Fe-Co alloys Evolution of spin excitations into the superconducting state in FeTe1-xSex... Phonon Density of States and Heat Capacity of La$_{3-x}$Te$_4$ Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2... Spin Excitations in BaFe1.84Co0.16As2 Superconductor Observed by Inelastic Neutron Scattering Phonon Density of States of LaFeAsO1-xFx Pagination First page « First Previous page ‹‹ … Page 6 Current page 7 Page 8 Next page ›› Last page Last » Key Links Curriculum Vitae ORCID ARCS Instrument Page Organizations Neutron Sciences Directorate Neutron Scattering Division Spectroscopy Section Direct Geometry Group