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Title: Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect

We experimentally observed the inverse spin Hall effect (ISHE) of ferromagnetic FePt alloys. Spin Seebeck effect due to the temperature gradient generated the spin current (J{sub s}) in the FePt|Y{sub 3}Fe{sub 5}O{sub 12} (YIG) structure, and J{sub s} was injected from YIG to FePt and converted to the charge current through ISHE of FePt. The significant difference in magnetization switching fields for FePt and YIG led to the clear separation of the voltage of ISHE from that of anomalous Nernst effect in FePt. We also investigated the effect of ordering of FePt crystal structure on the magnitude of ISHE voltage in FePt.
Authors:
;  [1] ;  [1] ;  [2] ;  [1] ;  [2] ;  [3] ;  [2] ;  [1] ;  [2] ;  [2] ;  [2]
  1. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  2. (Japan)
  3. WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
Publication Date:
OSTI Identifier:
22489201
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALLOYS; CRYSTAL STRUCTURE; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; FERRITE GARNETS; HALL EFFECT; IRON OXIDES; MAGNETIZATION; NERNST EFFECT; SEEBECK EFFECT; SPIN; TEMPERATURE GRADIENTS; YTTRIUM COMPOUNDS