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arXiv 1202.2694cond-mat.mes-hallcond-mat.supr-conhep-th
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石墨烯双层膜中奇异手征超导相的模型

Model of an exotic chiral superconducting phase in a graphene bilayer

Mir Vahid Hosseini, Malek Zareyan

摘要:

我们从理论上证明了在石墨烯材料中形成一种新型的非常规超导性,它具有无带隙特性。所研究的超导电性是基于双层石墨烯中的手性电子的层间配对,这导致了具有异常热力学性质的奇异s波自旋三重态凝聚秩序。这些包括温度引起的冷凝的可能性,导致配对间隙随着温度的增加而增加,以及稳定超导状态的熵可以高于其在正常状态下的值。我们的研究揭示了石墨烯材料中的层间超导性与致密夸克物质中的色超导性以及核物质和超冷原子气体中的无隙配对态的相似性。

英文摘要:

We theoretically demonstrate the formation of a new type of unconventional superconductivity in graphene materials, which exhibits gapless property. The studied superconductivity is based on an interlayer pairing of chiral electrons in bilayer graphene, which results in an exotic s-wave spin-triplet condensate order with anomalous thermodynamic properties. These include the possibility of a temperature induced condensation causing an increase of the pairing gap with increasing temperature, and an entropy of the stable superconducting state which can be higher than its value in the normal state. Our study reveals the analogy of the interlayer superconductivity in graphene materials to the color superconductivity in dense quark matter and the gapless pairing states in nuclear matter and ultra-cold atomic gases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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