Determination of pairing symmetry from magnetotunneling spectroscopy: A case study for quasi-one-dimensional organic superconductors

Y. Tanuma, K. Kuroki, Y. Tanaka, R. Arita, S. Kashiwaya, H. Aoki

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

We propose that anisotropic p-, d-, or f-wave pairing symmetries can be distinguished from a tunneling spectroscopy in the presence of magnetic fields, which is exemplified here for a model organic superconductor (TMTSF)2X. The shape of the Fermi surface (quasi-one-dimensional in this example) affects sensitively the pairing symmetry, which in turn affects the shape (U or V) of the gap along with the presence/absence of the zero-bias peak in the tunneling in a subtle manner. Yet, an application of a magnetic field enables us to identify the symmetry, which is interpreted as an effect of the Doppler shift in Andreev bound states.

Original languageEnglish
Article number094507
Pages (from-to)945071-945076
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number9
Publication statusPublished - 2002 Sep 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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