Now showing items 1-4 of 4

    • Electron-phonon coupling and thermal transport in the thermoelectric compound Mo3Sb7-xTex 

      Abernathy, Douglas L; Bansal, Dipanshu; Delaire, Olivier; Li, CW; Said, AH; Yan, J (Physical Review B - Condensed Matter and Materials Physics, 2015-12-07)
      © 2015 American Physical Society.Phonon properties of Mo3Sb7-xTex (x=0,1.5,1.7), a potential high-temperature thermoelectric material, have been studied with inelastic neutron and x-ray scattering, and with first-principles ...
    • Momentum-resolved observations of the phonon instability driving geometric improper ferroelectricity in yttrium manganite. 

      Abernathy, Douglas L; Bansal, Dipanshu; Chi, Songxue; Delaire, Olivier; Garlea, V Ovidiu; Niedziela, Jennifer L; Ren, Yang; ... (9 authors) (Nature communications, 2018-01-02)
      Magnetoelectrics offer tantalizing opportunities for devices coupling ferroelectricity and magnetism but remain difficult to realize. Breakthrough strategies could circumvent the mutually exclusive origins of magnetism and ...
    • Phonon anharmonicity and negative thermal expansion in SnSe 

      Abernathy, Douglas L; Bansal, Dipanshu; Delaire, Olivier; Hong, J; Hu, MY; Li, CW; May, AF; ... (8 authors) (Physical Review B - Condensed Matter and Materials Physics, 2016-08-09)
      © 2016 American Physical Society.The anharmonic phonon properties of SnSe in the Pnma phase were investigated with a combination of experiments and first-principles simulations. Using inelastic neutron scattering (INS) and ...
    • Weak coupling of pseudoacoustic phonons and magnon dynamics in the incommensurate spin-ladder compound S r14 C u24 O41 

      Abernathy, Douglas L; Aczel, AA; Bansal, Dipanshu; Chen, X; Delaire, Olivier; Shi, L; Sullivan, S; ... (8 authors) (Physical Review B - Condensed Matter and Materials Physics, 2016-10-21)
      © 2016 American Physical Society.Intriguing lattice dynamics have been predicted for aperiodic crystals that contain incommensurate substructures. Here we report inelastic neutron scattering measurements of phonon and magnon ...