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Phase boundary of spin-polarized-current state of electrons in bilayer graphene

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 نشر من قبل Xin-Zhong Yan
 تاريخ النشر 2016
  مجال البحث فيزياء
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Using a four-band Hamiltonian, we study the phase boundary of spin-polarized-current state (SPCS) of interacting electrons in bilayer graphene. The model of spin-polarized-current state has previously been shown to resolve a number of experimental puzzles in bilayer graphene. The phase boundaries of the SPCS with and without the external voltage between the two layers are obtained in this work. An unusual phase boundary where there are two transition temperatures for a given carrier concentration is found at finite external voltage. The physics of this phenomenon is explained.



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