The spin-polarized $\nu =0$ state of graphene: a spin superconductor

Abstract

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.

6 pages, 4 figures

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Cited by in corpus (15)

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• Long-Distance Spin Transport Through a Graphene Quantum Hall Antiferromagnet
• Theory for electric dipole superconductivity with an application for bilayer excitons
• Spin phase regulated spin Josephson supercurrent in topological superconductor
• Non-Abelian braiding in spin superconductors utilizing the Aharonov-Casher effect
• Spin-flip reflection at the normal metal-spin superconductor interface
• Spin Transport in Normal Metal-Ising Superconductor Junction
• Ginzburg-Landau-type theory of non-polarized spin superconductivity
• Dissipationless Spin-Charge Conversion in Excitonic Pseudospin Superfluid
• Tuning Spin Transport in a Graphene Antiferromagnetic Insulator
• Geometric phase driven Josephson junction: Possible experimental scheme for the search of spin superfluidity
• Anomalous spin Josephson effect in spin superconductors
• Electromagnetic response in dipole superfluids: vortex lattices and singular domain walls
• Fractional spin Josephson effect in topological spin superconductors
• Spin transport in a normal meta-altermagnetic superconducting nanowire junction