Spin current and inverse spin Hall effect in ferromagnetic metals probed by Y{sub 3}Fe{sub 5}O{sub 12}-based spin pumping

Journal Article · Mon May 19 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4878540· OSTI ID:22273380

Wang, Hailong; Du, Chunhui; Yang, Fengyuan ^[1]

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1. Department of Physics, The Ohio State University, Columbus, Ohio 43210 (United States)

Using ferromagnetic (FM) resonance spin pumping, we observe injection of spin currents from Y{sub 3}Fe{sub 5}O{sub 12} (YIG) films to FM metals, including Ni{sub 81}Fe{sub 19} (Py), Fe, Co, and Ni, and detection of spin currents by inverse spin Hall effect (ISHE) in the FM metals. We obtain a high effective spin mixing conductance of 6.3 × 10{sup 18} m{sup −2} in a YIG/Cu/Py trilayer and a spin Hall angle of 0.020 for Py. The spin pumping signals in Fe, Co, and Ni confirm the mechanism of ISHE in FMs is the inverse process of the anomalous Hall effect.

• OSTI ID: 22273380
• Journal Information: Applied Physics Letters, Vol. 104, Issue 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CURRENTS
HALL EFFECT
IRON OXIDES
METALS
RESONANCE
SPIN
YTTRIUM COMPOUNDS