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Fractional Flux Quanta at Intrinsic Metallic Interfaces of Noncentrosymmetric Superconductors

2008/01/09 by Christian Iniotakis, C. Iniotakis, Satoshi Fujimoto +3
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #Topological Materials and Phenomena #cond-mat.supr-con

paper · pdf · doi:10.1143/jpsj.77.083701

published as J. Phys. Soc. Jpn. 77, 083701 (2008) · 4 pages, 3 figures

arxiv created 2008/01/09 · openalex publication_date 2008/07/25 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We examine intrinsic interfaces separating crystalline twin domains of opposite spin-orbit coupling in a noncentrosymmetric superconductor such as CePt3Si. 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.

Citations