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Title: Emergent spin electromagnetism induced by magnetization textures in the presence of spin-orbit interaction (invited)

Emergent electromagnetic field which couples to electron's spin in ferromagnetic metals is theoretically studied. Rashba spin-orbit interaction induces spin electromagnetic field which is in the linear order in gradient of magnetization texture. The Rashba-induced effective electric and magnetic fields satisfy in the absence of spin relaxation the Maxwell's equations as in the charge-based electromagnetism. When spin relaxation is taken into account besides spin dynamics, a monopole current emerges generating spin motive force via the Faraday's induction law. The monopole is expected to play an important role in spin-charge conversion and in the integration of spintronics into electronics.
Authors:
 [1] ;  [1] ;  [2]
  1. RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198 Japan (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22273643
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; ELECTROMAGNETIC FIELDS; ELECTROMAGNETISM; ELECTRONS; FARADAY INDUCTION; FERROMAGNETIC MATERIALS; L-S COUPLING; MAGNETIC FIELDS; MAGNETIZATION; MAXWELL EQUATIONS; METALS; RELAXATION; SPIN; TEXTURE