NMR studies on the internal structure of high-Tc superconductors and other anorganic compounds

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

Research output: Contribution to journalArticle

Abstract

Spatially-resolved NMR is used to probe internal structures in highly correlated superconductors of optimally-doped Tl2Ba 2CuO6+δ (Tc=85 K) and a heavy fermion superconductor CeCoIn5 (Tc = 2.3 K). The characteristic change of the properties of 205Tl-NMR in the vortex state provides a clear evidence of the antiferromagnetic order in the vortex cores below 20 K in Tl2Ba2CuO6+δ. We also obtain anomalous 115In-NMR spectra of CeCoIn5, which provides a microscopic evidence for the occurrence of a spatially-modulated superconducting order parameter expected in a Fulde-Ferrel-Larkin-Ovchinnkov (FFLO) state.

Original languageEnglish
Pages (from-to)87-93
Number of pages7
JournalHyperfine Interactions
Volume159
Issue number1-4
DOIs
Publication statusPublished - Dec 2005
Externally publishedYes

Fingerprint

Superconducting materials
Nuclear magnetic resonance
nuclear magnetic resonance
Vortex flow
Heavy fermion superconductors
vortices
heavy fermion superconductors
occurrences
probes

Keywords

  • Antiferromagnetic order
  • FFLO state
  • NMR
  • Superconductivity
  • Vortex core

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Nuclear and High Energy Physics

Cite this

Kumagai, K., Kakuyanagi, K., Saitoh, M., Matsuda, Y., Hasegawa, M., Takashima, S., ... Takagi, H. (2005). NMR studies on the internal structure of high-Tc superconductors and other anorganic compounds. Hyperfine Interactions, 159(1-4), 87-93. https://doi.org/10.1007/s10751-005-9086-3

NMR studies on the internal structure of high-Tc superconductors and other anorganic compounds. / Kumagai, K.; Kakuyanagi, K.; Saitoh, M.; Matsuda, Y.; Hasegawa, M.; Takashima, S.; Nohara, Minoru; Takagi, H.

In: Hyperfine Interactions, Vol. 159, No. 1-4, 12.2005, p. 87-93.

Research output: Contribution to journalArticle

Kumagai, K, Kakuyanagi, K, Saitoh, M, Matsuda, Y, Hasegawa, M, Takashima, S, Nohara, M & Takagi, H 2005, 'NMR studies on the internal structure of high-Tc superconductors and other anorganic compounds', Hyperfine Interactions, vol. 159, no. 1-4, pp. 87-93. https://doi.org/10.1007/s10751-005-9086-3
Kumagai K, Kakuyanagi K, Saitoh M, Matsuda Y, Hasegawa M, Takashima S et al. NMR studies on the internal structure of high-Tc superconductors and other anorganic compounds. Hyperfine Interactions. 2005 Dec;159(1-4):87-93. https://doi.org/10.1007/s10751-005-9086-3
Kumagai, K. ; Kakuyanagi, K. ; Saitoh, M. ; Matsuda, Y. ; Hasegawa, M. ; Takashima, S. ; Nohara, Minoru ; Takagi, H. / NMR studies on the internal structure of high-Tc superconductors and other anorganic compounds. In: Hyperfine Interactions. 2005 ; Vol. 159, No. 1-4. pp. 87-93.
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