Microscopic evidence of the FFLO state in CeCoIn5 probed by NMR

K. Kumagai, K. Kakuyanagi, M. Saitoh, S. Takashima, Minoru Nohara, H. Takagi, Y. Matsuda

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We found an anomalous temperature dependence of 115In-NMR spectrum in the newly discovered high field and low-temperature superconducting phase of CeCoIn5. The anomalies near the upper limit of Hc 2 are attributed to spatially distributed local density of states of quasiparticles. From a simulation model with sinusoidally modulated superconducting order parameter, the present NMR study at a microscopic point of view provides a direct evidence that the Fulde-Ferrell-Larkin-Ovchinikov (FFLO) state is realized at the high-field phase in CeCoIn5.

Original languageEnglish
Pages (from-to)347-350
Number of pages4
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - May 1 2006
Externally publishedYes

Fingerprint

Nuclear magnetic resonance
nuclear magnetic resonance
anomalies
Temperature
temperature dependence
simulation

Keywords

  • CeCoIn
  • FFLO
  • Heavy fermion compound
  • NMR
  • Superconductivity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kumagai, K., Kakuyanagi, K., Saitoh, M., Takashima, S., Nohara, M., Takagi, H., & Matsuda, Y. (2006). Microscopic evidence of the FFLO state in CeCoIn5 probed by NMR. Physica B: Condensed Matter, 378-380(SPEC. ISS.), 347-350. https://doi.org/10.1016/j.physb.2006.01.348

Microscopic evidence of the FFLO state in CeCoIn5 probed by NMR. / Kumagai, K.; Kakuyanagi, K.; Saitoh, M.; Takashima, S.; Nohara, Minoru; Takagi, H.; Matsuda, Y.

In: Physica B: Condensed Matter, Vol. 378-380, No. SPEC. ISS., 01.05.2006, p. 347-350.

Research output: Contribution to journalArticle

Kumagai, K, Kakuyanagi, K, Saitoh, M, Takashima, S, Nohara, M, Takagi, H & Matsuda, Y 2006, 'Microscopic evidence of the FFLO state in CeCoIn5 probed by NMR', Physica B: Condensed Matter, vol. 378-380, no. SPEC. ISS., pp. 347-350. https://doi.org/10.1016/j.physb.2006.01.348
Kumagai K, Kakuyanagi K, Saitoh M, Takashima S, Nohara M, Takagi H et al. Microscopic evidence of the FFLO state in CeCoIn5 probed by NMR. Physica B: Condensed Matter. 2006 May 1;378-380(SPEC. ISS.):347-350. https://doi.org/10.1016/j.physb.2006.01.348
Kumagai, K. ; Kakuyanagi, K. ; Saitoh, M. ; Takashima, S. ; Nohara, Minoru ; Takagi, H. ; Matsuda, Y. / Microscopic evidence of the FFLO state in CeCoIn5 probed by NMR. In: Physica B: Condensed Matter. 2006 ; Vol. 378-380, No. SPEC. ISS. pp. 347-350.
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