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Finite-Size Effect in Phonon-Induced Elliott-Yafet Spin Relaxation in Al.
Watts, J D; Batley, J T; Rabideau, N A; Hoch, J P; O'Brien, L; Crowell, P A; Leighton, C.
Afiliación
  • Watts JD; School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • Batley JT; Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • Rabideau NA; Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • Hoch JP; Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • O'Brien L; Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • Crowell PA; Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.
  • Leighton C; Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom.
Phys Rev Lett ; 128(20): 207201, 2022 May 20.
Article en En | MEDLINE | ID: mdl-35657897
ABSTRACT
The Elliott-Yafet theory of spin relaxation in nonmagnetic metals predicts proportionality between spin and momentum relaxation times for scattering centers such as phonons. Here, we test this theory in Al nanowires over a very large thickness range (8.5-300 nm), finding that the Elliott-Yafet proportionality "constant" for phonon scattering in fact exhibits a large, unanticipated finite-size effect. Supported by analytical and numerical modeling, we explain this via strong phonon-induced spin relaxation at surfaces and interfaces, driven in particular by enhanced spin-orbit coupling.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos