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Title: Spin current formation at the graphene/Pt interface for magnetization manipulation in magnetic nanodots

Spin electronic structure of the Graphene/Pt interface has been investigated. A large induced spin-orbit splitting (∼80 meV) of graphene π states with formation of non-degenerated Dirac-cone spin states at the K{sup ¯}-point of the Brillouin zone crossed with spin-polarized Pt 5d states at Fermi level was found. We show that this spin structure can be used as a spin current source in spintronic devices. By theoretical estimations and micromagnetic modeling based on the experimentally observed spin-orbit splitting, we demonstarte that the induced intrinsic magnetic field in such structure might be effectively used for induced remagnetization of the (Ni-Fe)-nanodots arranged atop the interface.
Authors:
; ; ;  [1] ; ; ;  [2] ;  [3] ;  [3]
  1. Saint Petersburg State University, Ulyanovskaya st. 1, Peterhof, Saint Petersburg 198504 (Russian Federation)
  2. A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilova st. 38, Moscow 119991 (Russian Federation)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22311206
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; BRILLOUIN ZONES; CURRENTS; ELECTRONIC STRUCTURE; FERMI LEVEL; GRAPHENE; INTERFACES; IRON; L-S COUPLING; MAGNETIC FIELDS; MAGNETIZATION; NANOPARTICLES; NICKEL; PLATINUM; QUANTUM DOTS; SIMULATION; SPIN; SPIN ORIENTATION