Analytical Formulation of the Local Density of States around a Vortex Core in Unconventional Superconductors

2006/05/31 by Yuki Nagai, Yosuke Ueno, Yusuke Kato +1 · 2 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Rare-earth and actinide compounds #cond-mat.supr-con

paper · pdf · doi:10.1143/jpsj.75.104701

published as J. Phys. Soc. Jpn 75, 104701 (2006) · 13 pages, 16 figures

openalex publication_date 2006/09/28 · arxiv created 2006/10/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

On the basis of the quasiclassical theory of superconductivity, we obtain a formula for the local density of states (LDOS) around a vortex core of superconductors with anisotropic pair-potential and Fermi surface in arbitrary directions of magnetic fields. Earlier results on the LDOS of d-wave superconductors and NbSe₂ are naturally interpreted within our theory geometrically; the region with high intensity of the LDOS observed in numerical calculations turns out to the enveloping curve of the trajectory of Andreev bound states. We discuss experimental results on YNi₂B₂C within the quasiclassical theory of superconductivity.

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