Douglas L Abernathy Distinguished Scientist and Group Leader, Direct Geometry Spectroscopy Contact 865.617.5624 | ABERNATHYDL@ORNL.GOV All Publications 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 Generalized quasiharmonic approximation via space group irreducible derivatives Spiral Spin Liquid on a Honeycomb Lattice Real-Space Local Dynamics of Molten Inorganic Salts Using Van Hove Correlation Function Strongly Anharmonic Phonons and Their Role in Superionic Diffusion and Ultralow Thermal Conductivity of Cu7PSe6 Thermal expansion and phonon anharmonicity of cuprite studied by inelastic neutron scattering and ab initio calculations 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 Neutron thermalization in nuclear graphite: A modern story of a classic moderator Quasiparticle twist dynamics in non-symmorphic materials Matryoshka phonon twinning in α-GaN 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 Temporally decoherent and spatially coherent vibrations in metal halide perovskites Magnetic order and fluctuations in the quasi-two-dimensional planar magnet Sr( Co1−xNix)2As2 Temperature-dependent lattice dynamics in iridium Nonlinear propagating modes beyond the phonons in fluorite-structured crystals Pagination First page « First Previous page ‹â¶Ä¹ Page 1 Current page 2 Page 3 … Next page ›â¶Äº Last page Last » Key Links Curriculum Vitae Organizations Spectroscopy Section Direct Geometry Group
