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Lattice Dynamics of EuO: Evidence for Giant Spin-Phonon Coupling.
Pradip, R; Piekarz, P; Bosak, A; Merkel, D G; Waller, O; Seiler, A; Chumakov, A I; Rüffer, R; Oles, A M; Parlinski, K; Krisch, M; Baumbach, T; Stankov, S.
Affiliation
  • Pradip R; Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
  • Piekarz P; Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.
  • Bosak A; Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Kraków, Poland.
  • Merkel DG; ESRF-The European Synchrotron, F-38000 Grenoble, France.
  • Waller O; ESRF-The European Synchrotron, F-38000 Grenoble, France.
  • Seiler A; Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
  • Chumakov AI; Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.
  • Rüffer R; Laboratory for Applications of Synchrotron Radiation, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
  • Oles AM; Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology, D-76344 Eggenstein-Leopoldshafen, Germany.
  • Parlinski K; ESRF-The European Synchrotron, F-38000 Grenoble, France.
  • Krisch M; ESRF-The European Synchrotron, F-38000 Grenoble, France.
  • Baumbach T; Max-Planck-Institut für Festkörperforschung, D-70569 Stuttgart, Germany.
  • Stankov S; Marian Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland.
Phys Rev Lett ; 116(18): 185501, 2016 May 06.
Article in En | MEDLINE | ID: mdl-27203332
ABSTRACT
Comprehensive studies of lattice dynamics in the ferromagnetic semiconductor EuO have been performed by a combination of inelastic x-ray scattering, nuclear inelastic scattering, and ab initio calculations. A remarkably large broadening of the transverse acoustic phonons was discovered at temperatures above and below the Curie temperature T_{C}=69 K. This result indicates a surprisingly strong momentum-dependent spin-phonon coupling induced by the spin dynamics in EuO.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2016 Document type: Article Affiliation country: Germany Publication country: EEUU / ESTADOS UNIDOS / ESTADOS UNIDOS DA AMERICA / EUA / UNITED STATES / UNITED STATES OF AMERICA / US / USA
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2016 Document type: Article Affiliation country: Germany Publication country: EEUU / ESTADOS UNIDOS / ESTADOS UNIDOS DA AMERICA / EUA / UNITED STATES / UNITED STATES OF AMERICA / US / USA