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Picosecond Spin Seebeck Effect.
Kimling, Johannes; Choi, Gyung-Min; Brangham, Jack T; Matalla-Wagner, Tristan; Huebner, Torsten; Kuschel, Timo; Yang, Fengyuan; Cahill, David G.
Afiliación
  • Kimling J; Department of Materials Science and Engineering and Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA.
  • Choi GM; Center for Spintronics, Korea Institute of Science and Technology, Seoul 136-791, Korea.
  • Brangham JT; Department of Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, Ohio 43210, USA.
  • Matalla-Wagner T; Center for Spinelectronic Materials and Devices, Department of Physics, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany.
  • Huebner T; Center for Spinelectronic Materials and Devices, Department of Physics, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany.
  • Kuschel T; Center for Spinelectronic Materials and Devices, Department of Physics, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany.
  • Yang F; Physics of Nanodevices, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands.
  • Cahill DG; Department of Physics, The Ohio State University, 191 West Woodruff Avenue, Columbus, Ohio 43210, USA.
Phys Rev Lett ; 118(5): 057201, 2017 Feb 03.
Article en En | MEDLINE | ID: mdl-28211731
ABSTRACT
We report time-resolved magneto-optic Kerr effect measurements of the longitudinal spin Seebeck effect in normal metal/Y_{3}Fe_{5}O_{12} bilayers driven by an interfacial temperature difference between electrons and magnons. The measured time evolution of spin accumulation induced by laser excitation indicates transfer of angular momentum across normal metal/Y_{3}Fe_{5}O_{12} interfaces on a picosecond time scale, too short for contributions from a bulk temperature gradient in an yttrium iron garnet. The product of spin-mixing conductance and the interfacial spin Seebeck coefficient determined is of the order of 10^{8} A m^{-2} K^{-1}.
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Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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XML
PubMed Links
Buscar en Google

Texto completo: 1 Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos