Triplet Scenario of Superconductivity vs. Singlet One in (TMTSF)2X Materials

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

We discuss experimental data, obtained on organic quasi-one-dimensional (TMTSF)2X (X=PF6 and ClO4) superconductors, which reveal unconventional nature of their superconducting phases. Our theoretical interpretation of the data supports a triplet scenario of superconductivity in (TMTSF)2PF6 material. In particular, we suggest a careful theoretical analysis of the recently measured anisotropic upper critical fields. On a basis of this analysis, we suggest that the triplet superconducting order parameter is described by a d-vector with da(k) ≠ 0 and db(k) = dc(k) = 0, which defines a spin part of the order parameter but does not uniquely define its orbital part, da(k). We consider two major possible orbital parts of this triplet order parameter, px-wave and py-wave ones. In the end of the chapter, we discuss in a brief a d-wave singlet scenario of superconductivity, which we consider as a possibility in (TMTSF)2ClO4 material.

Original languageEnglish (US)
Title of host publicationSpringer Series in Materials Science
PublisherSpringer-Verlag
Pages643-659
Number of pages17
DOIs
StatePublished - Jan 1 2008

Publication series

NameSpringer Series in Materials Science
Volume110
ISSN (Print)0933-033X
ISSN (Electronic)2196-2812

Keywords

  • Conducting Chain
  • Fermi Surface
  • Knight Shift
  • Orbital Part
  • Vector Order Parameter

ASJC Scopus subject areas

  • Materials Science(all)

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    Lebed, A., & Wu, S. (2008). Triplet Scenario of Superconductivity vs. Singlet One in (TMTSF)2X Materials. In Springer Series in Materials Science (pp. 643-659). (Springer Series in Materials Science; Vol. 110). Springer-Verlag. https://doi.org/10.1007/978-3-540-76672-8_23