Douglas L Abernathy Distinguished Scientist and Group Leader, Direct Geometry Spectroscopy Contact ABERNATHYDL@ORNL.GOV All Publications Phason-Dominated Thermal Transport in Fresnoite Spin excitations in the kagome-lattice metallic antiferromagnet Fe0.89Co0.11Sn Validating first-principles phonon lifetimes via inelastic neutron scattering Electronic and structural properties of RbCeX2 (X2: O2, S2, SeS, Se2, TeSe, Te2) Generalized quasiharmonic approximation via space group irreducible derivatives Suppressed thermal conductivity in hyperstoichiometric uranium dioxide controlled by phonon lifetimes Frustration-induced diffusive scattering anomaly and dimension change in FeGe2... Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide Spiral Spin Liquid on a Honeycomb Lattice Real-Space Local Dynamics of Molten Inorganic Salts Using Van Hove Correlation Function Thermal expansion and phonon anharmonicity of cuprite studied by inelastic neutron scattering and ab initio calculations Strongly Anharmonic Phonons and Their Role in Superionic Diffusion and Ultralow Thermal Conductivity of Cu7PSe6 Low-Temperature Competing Magnetic Energy Scales in the Topological Ferrimagnet TbMn6Sn6 Role of the third dimension in searching for Majorana fermions in α−RuCl3 via phonons Fast Na diffusion and anharmonic phonon dynamics in superionic Na3PS4 Significant phase-space-driven thermal transport suppression in BC8 silicon Matryoshka phonon twinning in α-GaN Neutron thermalization in nuclear graphite: A modern story of a classic moderator Quasiparticle twist dynamics in non-symmorphic materials Magnetic Field Effect on Topological Spin Excitations in CrI3 Thermal neutron scattering measurements and modeling of yttrium-hydrides for high temperature moderator applications High Temperature Thermal Neutron Scattering Measurements and Evaluation of YHx for the Transformational Challenge Reactor Uncovering design principles for amorphous-like heat conduction using two-channel lattice dynamics Antiferromagnetic ordering and possible lattice response to dynamic uranium valence in U3O8 Prediction and observation of intermodulation sidebands from anharmonic phonons in NaBr Pagination First page « First Previous page ‹‹ Page 1 Current page 2 Page 3 … 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