Douglas L Abernathy Distinguished Scientist and Group Leader, Direct Geometry Spectroscopy Contact abernathydl@ornl.gov | 865.617.5624 All Publications 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... 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 phonon lifetimes and thermal conductivity of silicon by inelastic neutron scattering and ab initio calc... Temperature-dependent lattice dynamics in iridium... Nonlinear propagating modes beyond the phonons in fluorite-structured crystals Vacancy-Driven Variations in the Phonon Density of States of Fast Neutron Irradiated Nuclear Graphite... Controlling phonon lifetimes via sublattice disordering in AgBiSe2... Thermal Neutron Scattering Evaluation of Yttrium Hydride - FY2020 Progress Anharmonic Origin of the Giant Thermal Expansion of NaBr... Magnetically driven phonon instability enables the metal–insulator transition in h-FeS... Lattice Dynamics of Sb 2 Se 3 from Inelastic Neutron and X‐Ray Scattering... Anharmonic lattice dynamics and superionic transition in AgCrSe2... Experimental determination of the temperature-dependent Van Hove function in a Zr 80 Pt 20 liquid... Lattice dynamics of the hybrid improper ferroelectrics (Ca,Sr)3Ti2O7... Super-resolution energy spectra from neutron direct-geometry spectrometers... Frustrated magnetic interactions in an S=3/2 bilayer honeycomb lattice compound Bi3Mn4O12(NO3)... 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