Analytical Result on Electronic States around a Vortex Core in a Noncentrosymmetric Superconductor

2006/02/28 by Yuki Nagai, Yusuke Kato, Nobuhiko Hayashi · 3 citations
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.75.043706

published as J. Phys. Soc. Jpn 75, 043706 (2006) · 4 pages,3 figures

arxiv created 2006/04/10 · openalex publication_date 2006/04/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analytically study electronic bound states around a single vortex core in a noncentrosymmetric superconductor such as \rm CePt₃Si without mirror symmetry about the ab plane. Considering a mixed spin-singlet-triplet Cooper pairing model, we obtain a formula about the local density of states (LDOS) around a vortex core in any directions of magnetic fields. The LDOS under a magnetic field perpendicular to the c axis are quite different from those of typical s-wave or d-wave superconductors. From the ellipticity of the spatial pattern of the LDOS around a vortex core, one can estimate experimentally the pairing symmetry of \rm CePt₃Si such as the position of the gap nodes and the ratio of the singlet component to the triplet component in order parameter.

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