Model for Vortex-Core Tunneling Spectroscopy of Chiral pi-Wave Superconductors via Odd-Frequency Pairing States

Yasunari Tanuma, Nobuhiko Hayashi, Yukio Tanaka, Alexandre Avraamovitch Golubov

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Abstract

The local density of states is studied theoretically in terms of the odd-frequency (odd-ω) Cooper pairing induced around a vortex core. We find that a zero energy peak in the density of states at the vortex center is robust against nonmagnetic impurities in a chiral p-wave superconductor owing to an odd-ω s-wave pair amplitude. We suggest how to discriminate a spin-triplet pairing symmetry and spatial chiral-domain structure by scanning tunneling spectroscopy via odd-ω pair amplitudes inside vortex cores
Original languageUndefined
Pages (from-to)117003-
JournalPhysical review letters
Volume102
Issue number11
DOIs
Publication statusPublished - 2009

Keywords

  • METIS-263327
  • IR-73747

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