Role of electron-electron scattering on spin transport in single layer graphene | Zendy

Bahniman Ghosh | Zendy; Saurabh Katiyar | Zendy; Akshaykumar Salimath | Zendy

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

Author(s) -

Bahniman Ghosh,

Saurabh Katiyar,

Akshaykumar Salimath

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4862674

Subject(s) - scattering , condensed matter physics , electron , graphene , mott scattering , scattering rate , spin (aerodynamics) , phonon scattering , electron scattering , relaxation (psychology) , spin polarization , materials science , physics , phonon , small angle neutron scattering , neutron scattering , nanotechnology , optics , quantum mechanics , thermodynamics , psychology , social psychology

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

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