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Title: Microwave-induced spin currents in ferromagnetic-insulator|normal-metal bilayer system

A microwave technique is employed to simultaneously examine the spin pumping and the spin Seebeck effect processes in a YIG|Pt bilayer system. The experimental results show that for these two processes, the spin current flows in opposite directions. The temporal dynamics of the longitudinal spin Seebeck effect exhibits that the effect depends on the diffusion of bulk thermal-magnons in the thermal gradient in the ferromagnetic-insulator|normal-metal system.
Authors:
 [1] ;  [2] ; ; ; ; ;  [1]
  1. Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universit├Ąt Kaiserslautern, 67663 Kaiserslautern (Germany)
  2. (Germany)
Publication Date:
OSTI Identifier:
22311023
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CURRENTS; DIELECTRIC MATERIALS; DIFFUSION; FERRITE GARNETS; FERROMAGNETIC MATERIALS; IRON OXIDES; LAYERS; METALS; MICROWAVE RADIATION; PLATINUM; PUMPING; SEEBECK EFFECT; SPIN; TEMPERATURE GRADIENTS; YTTRIUM COMPOUNDS