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The spin-polarized ν=0 state of graphene: a spin superconductor

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arxiv 1306.4154 v1 pith:UFGDZE5T submitted 2013-06-18 cond-mat.supr-con cond-mat.mes-hall

The spin-polarized ν=0 state of graphene: a spin superconductor

Qing-feng Sun , X. C. Xie This is my paper
classification cond-mat.supr-con cond-mat.mes-hall
keywords statespinspin-polarizedbandsgraphenepairssuperconductorwell
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the spin-polarized $\nu=0$ Landau-level state of graphene. Due to the electron-hole attractive interaction, electrons and holes can bound into pairs. These pairs can then condense into a spin-triplet superfluid ground state: a spin superconductor state. In this state, a gap opens up in the edge bands as well as in the bulk bands, thus it is a charge insulator, but it can carry the spin current without dissipation. These results can well explain the insulating behavior of the spin-polarized $\nu=0$ state in the recent experiments.

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