skip to main content

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

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.
Authors:
;  [1] ; ;  [1] ;  [2] ;  [3] ; ;  [4]
  1. Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531 (Japan)
  2. (Japan)
  3. Department of Electronic Science and Engineering, Kyoto University, Kyoto 615-8531 (Japan)
  4. Institute for Material Chemistry and Engineering, Kyushu University, Fukuoka 816-8508 (Japan)
Publication Date:
OSTI Identifier:
22350962
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 16; 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; CHARGE CARRIERS; CHEMICAL VAPOR DEPOSITION; CONVERSION; CURRENTS; ELECTROMOTIVE FORCE; GRAPHENE; HALL EFFECT; L-S COUPLING; PUMPING; SPIN