Observation of spin-charge conversion in chemical-vapor-deposition-grown single-layer graphene

Journal Article · Mon Oct 20 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4893574· OSTI ID:22350962

Ohshima, Ryo; Sakai, Atsushi ^[1]; Ando, Yuichiro; Shiraishi, Masashi ^[1]; Shinjo, Teruya ^[2]; Kawahara, Kenji; Ago, Hiroki ^[3]

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1. Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531 (Japan)
2. Department of Electronic Science and Engineering, Kyoto University, Kyoto 615-8531 (Japan)
3. Institute for Material Chemistry and Engineering, Kyushu University, Fukuoka 816-8508 (Japan)

Conversion of pure spin current to charge current in single-layer graphene (SLG) is investigated by using spin pumping. Large-area SLG grown by chemical vapor deposition is used for the conversion. Efficient spin accumulation in SLG by spin pumping enables observing an electromotive force produced by the inverse spin Hall effect (ISHE) of SLG. The spin Hall angle of SLG is estimated to be 6.1 × 10{sup −7}. The observed ISHE in SLG is ascribed to its non-negligible spin-orbit interaction in SLG.

• OSTI ID: 22350962
• Journal Information: Applied Physics Letters, Vol. 105, Issue 16; 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

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHARGE CARRIERS
CHEMICAL VAPOR DEPOSITION
CONVERSION
CURRENTS
ELECTROMOTIVE FORCE
GRAPHENE
HALL EFFECT
L-S COUPLING
PUMPING
SPIN