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Title: Role of electron-electron scattering on spin transport in single layer graphene

In this work, the effect of electron-electron scattering on spin transport in single layer graphene is studied using semi-classical Monte Carlo simulation. The D’yakonov-P’erel mechanism is considered for spin relaxation. It is found that electron-electron scattering causes spin relaxation length to decrease by 35% at 300 K. The reason for this decrease in spin relaxation length is that the ensemble spin is modified upon an e-e collision and also e-e scattering rate is greater than phonon scattering rate at room temperature, which causes change in spin relaxation profile due to electron-electron scattering.
Authors:
 [1] ; ;  [2]
  1. Microelectronics Research Center, 10100, Burnet Road, Bldg. 160, University of Texas at Austin, Austin, TX, 78758 (United States)
  2. Department of Electrical Engineering, Indian Institute of Technology, Kanpur 208016 (India)
Publication Date:
OSTI Identifier:
22251674
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 1; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPUTERIZED SIMULATION; ELECTRON-ELECTRON COLLISIONS; ELECTRON-ELECTRON INTERACTIONS; GRAPHENE; MONTE CARLO METHOD; RELAXATION; SCATTERING; SPIN