Orientational field dependence of low-lying excitations in the mixed state of unconventional superconductors

P. Miranović, N. Nakai, M. Ichioka, K. Machida

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Orientational field dependence of the zero-energy density of states (ZEDOS) is calculated for superconductors with the polar state (line node), axial state (point node), and three-dimensional d-wave state. Depending on the gap topology and the relative field direction the field dependencies of ZEDOS sensitively differ, providing us a useful and practical method to identify the gap topology. It is also demonstrated that for d-wave state the field rotation in the basal plane shows a sizable oscillation (∼3%) of ZEDOS. This is directly measurable in low-T specific heat experiment in the mixed state.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number5
DOIs
Publication statusPublished - Aug 1 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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