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arXiv 1107.4071cond-mat.supr-concond-mat.str-el
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正交对称p波铁磁超导体的上临界场

Upper critical field of p-wave ferromagnetic superconductors with orthorhombic symmetry

Richard A. Klemm, Christopher Lörscher, Jingchuan Zhang, Qiang Gu

摘要:

我们将对称性破缺的p波超导体中的$H_{c2}(T)$的Scharnberg-Klemm理论推广到正交晶体中对称性部分破缺的情况,这适用于强磁场中更奇异的铁磁超导体UCoGe。对于一些部分对称性破缺的情况,$H_{c2}(T)$可以模拟所有三个晶轴方向上的向上曲率,并且获得了与一些UCoGe数据的合理良好拟合。

英文摘要:

We extended the Scharnberg-Klemm theory of $H_{c2}(T)$ in p-wave superconductors with broken symmetry to cases of partially broken symmetry in an orthorhombic crystal, as is appropriate for the more exotic ferromagnetic superconductor UCoGe in strong magnetic fields. For some partially broken symmetry cases, $H_{c2}(T)$ can mimic upward curvature in all three crystal axis directions, and reasonably good fits to some of the UCoGe data are obtained.

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