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Title: Influence of damping constant on inverse spin hall voltage of La{sub 0.7}Sr{sub 0.3}MnO{sub 3}(x)/platinum bilayers

Pure spin transport via spin pumping in the condition of ferromagnetic resonance can be transformed to charge current in the ferromagnetic/paramagnetic bilayer systems, based on inverse spin Hall effect (ISHE). Here, we explore La{sub 0.7}Sr{sub 0.3}MnO(x)/Pt(5.5 nm) [x = 10 to 65 nm] bilayers to investigate the influence of damping constant on spin pumping efficiency. The results show that the ISHE voltage depend on the damping constant of magnetic moment, suggesting that the precession energy tansferred to lattice/electron of normal metal is a key parameter to control the magnitude of spin current.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan (China)
  2. (China)
  3. Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)
Publication Date:
OSTI Identifier:
22273852
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; 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; DAMPING; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; ELECTRONS; FERROMAGNETIC RESONANCE; HALL EFFECT; INTERFACES; LANTHANUM COMPOUNDS; LAYERS; MAGNETIC MOMENTS; MANGANATES; PARAMAGNETISM; PLATINUM; PUMPING; SPIN; STRONTIUM COMPOUNDS