“School of Physics”
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| Paper IPM / P / 12250 |
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| Abstract: | |||||||
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We address spin polarization dependence of graphene?s Fermi liquid properties quantitatively using
a microscopic Random Phase Approximation theory in an interacting spin-polarized Dirac electron
system. We show an enhancement of the minority-spin many-body velocity renormalization at fully
spin polarization due to the exchange interaction between electrons near the Fermi surface. The
spin-polarization dependence of the carrier Fermi velocity is of significance in various spintronic
applications.
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