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

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4863485· OSTI ID:22273852

Luo, G. Y. ^[1]; Chang, C. R. ^[2]

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1. Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan (China)
2. Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)

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.

• OSTI ID: 22273852
• Journal Information: Journal of Applied Physics, Vol. 115, 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); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

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