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arXiv 1003.0309cond-mat.supr-con
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非常规超导体中顺磁弛豫引起的反铁磁有序

Antiferromagnetic ordering induced by paramagnetic depairing in unconventional superconductors

Ryusuke Ikeda, Yuhki Hatakeyama, Kazushi Aoyama

摘要:

在含有CeCoIn_5的具有强Pauli顺磁弛豫(PD)的d波超导体中,经常观察到H_c2(0)以下的反铁磁(AFM)(或自旋密度波)量子临界涨落增强。它示出在这里,这种趋势的场诱导AFM订购是一个后果,强PD,特别是应该出现在超导体与沿AFM调制的间隙节点。基于这种特殊的PD效应,解释了CeCoIn_5中出现的两种现象:反常的涡旋晶格形状因子和Fulde-Ferrell-Larkin-Ovchinnikov态的AFM有序.

英文摘要:

Antiferromagnetic (AFM) (or spin-density wave) quantum critical fluctuation enhanced just below H_c2(0) have been often observed in d-wave superconductors with a strong Pauli paramagnetic depairing (PD) including CeCoIn_5. It is shown here that such a tendency of field-induced AFM ordering is a consequence of strong PD and should appear particularly in superconductors with a gap node along the AFM modulation. Two phenomena seen in CeCoIn_5, the anomalous vortex lattice form factor and the AFM order in the Fulde-Ferrell-Larkin-Ovchinnikov state, are explained based on this peculiar PD effect.

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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