Fractional Flux Quanta at Intrinsic Metallic Interfaces of Noncentrosymmetric Superconductors(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
Fractional Flux Quanta at Intrinsic Metallic Interfaces of Noncentrosymmetric Superconductors(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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DOI：
10.1143/jpsj.77.083701
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发表时间：
2008-01
影响因子：
1.7
通讯作者：
C. Iniotakis;S. Fujimoto;M. Sigrist
中科院分区：
文献类型：
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作者：
C. Iniotakis;S. Fujimoto;M. Sigrist
我们研究内在的界面分离结晶孪晶畴相反的自旋轨道耦合在一个非中心对称的超导体，如CePt 3 Si。在这些界面处，由于宇称混合库珀配对，低能量Andreev束缚态发生，并且可以实现违反时间反演对称性的超导相。这提供了允许在界面处形成具有分数通量量子的通量线的环境。它们的存在可能对这种超导体中的磁通蠕动行为产生强烈的影响。
We examine intrinsic interfaces separating crystalline twin domains of opposite spin–orbit coupling in a noncentrosymmetric superconductor such as CePt 3 Si. At these interfaces, low-energy Andreev bound states occur as a consequence of parity-mixed Cooper pairing, and a superconducting phase which violates time reversal symmetry can be realized. This provides an environment allowing flux lines with fractional flux quanta to be formed at the interface. Their presence could have strong implications on the flux creep behavior in such superconductors.