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arXiv 0910.0330cond-mat.supr-con
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II型超导体中涡旋晶格的一般一级取向转变

Generic First Order Orientation Transition of Vortex Lattices in Type II Superconductors

Kenta M. Suzuki, Kenji Inoue, Predrag Miranovic, Masanori Ichioka, Kazushige Machida

摘要:

本文用准经典Eilenberger理论结合非定域London理论从微观上解释了在四重对称超导体中观察到的涡旋晶格的一级相变。这种转变是固有的一般连续VL相变由于无论是间隙或费米速度各向异性。涡旋周围的电子态也表明了这一点。这种现象的最终起源是由于一些什么隐藏的挫折的自发对称性破缺六角形VL的基础上的四重晶体对称。

英文摘要:

First order transition of vortex lattices (VL) observed in various superconductors with four-fold symmetry is explained microscopically by quasi-classical Eilenberger theory combined with nonlocal London theory. This transition is intrinsic in the generic successive VL phase transition due to either gap or Fermi velocity anisotropies. This is also suggested by the electronic states around vortices. Ultimate origin of this phenomenon is attributed to some what hidden frustrations of a spontaneous symmetry broken hexagonal VL on the underlying four-fold crystalline symmetry.

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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