Theoretical proposal of a method to identify the symmetry of the order parameter in high-Tc superconductivity

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Abstract

A new experimental method to judge the symmetry of the order parameter in high-Tc superconductivity is proposed. The interference of reflected holes from different directions due to the Andreev reflection causes quite different phenomena among s-,dx2-y2- and dxy-wave superconductivity. It is shown that this interference effect may be observed as a change of the conductance below Tc, which enables us to identify the symmetry of the pairing state in high-Tc superconductivity. Various cases in which the experimental setup deviates from the ideal situation are also studied and experimental condition for this method is clarified.

Original languageEnglish
Pages (from-to)887-912
Number of pages26
JournalJournal of the Physical Society of Japan
Volume64
Issue number3
DOIs
Publication statusPublished - 1995 Mar
Externally publishedYes

Keywords

  • Andreev reflection
  • High-T superconductivity
  • Interference effect
  • Symmetry of the pairing state

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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