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Pt magnetic polarization on Y3Fe5O12 and magnetotransport characteristics.
Lu, Y M; Choi, Y; Ortega, C M; Cheng, X M; Cai, J W; Huang, S Y; Sun, L; Chien, C L.
Afiliação
  • Lu YM; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
  • Choi Y; Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Ortega CM; Department of Mechanical Engineering and Texas Center for Superconductivity (TcSUH), University of Houston, Houston, Texas 77204, USA.
  • Cheng XM; Department of Physics, Bryn Mawr College, Bryn Mawr, Pennsylvania 19010, USA.
  • Cai JW; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
  • Huang SY; Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA.
  • Sun L; Department of Mechanical Engineering and Texas Center for Superconductivity (TcSUH), University of Houston, Houston, Texas 77204, USA.
  • Chien CL; Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA.
Phys Rev Lett ; 110(14): 147207, 2013 Apr 05.
Article em En | MEDLINE | ID: mdl-25167034
ABSTRACT
Thin Pt films on an yttrium iron garnet (YIG = Y(3)Fe(5)O(12)) show ferromagneticlike transport properties, which may impact the functionality of Pt in spin current detection, but do not provide direct quantitative information on the Pt magnetization. We report magnetic x-ray magnetic circular dichroism measurements of YIG/Pt(1.5 nm) showing an average Pt moment of 0.054 µ(B) at 300 K and 0.076 µ(B) at 20 K. This observation indicates strong proximity effects and induced magnetic ordering in Pt on magnetic insulators and their contribution to the spin-related measurements should not be neglected. The transport characteristics also suggest considerable modifications in the Pt electronic structure due to magnetic ordering.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2013 Tipo de documento: Article País de afiliação: China
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2013 Tipo de documento: Article País de afiliação: China