Spin-gap and the superconducting fluctuations in high-Tc cuprates probed by 63Cu NMR

Guo-Qing Zheng, H. Ozaki, Y. Kitaoka, W. G. Clark, Y. Kodama, T. Kondo, Y. Shimakawa, Y. Kubo, P. Kuhns, A. P. Reyes, W. G. Moulton

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

From the 63Cu Knight shift and the nuclear spin-lattice relaxation rate under magnetic fields from zero up to 28 T in the underdoped (U) YBa2Cu4O8 and the slightly overdoped (O) TlSr2CaCu2O6.8, we find that the spin-gap (pseudogap) behaviors show contrasting response to magnetic fields in the U and O compounds. In the O compound, the spin-gap is strongly field dependent and can be accounted for by the superconducting fluctuation effects, but that in the U compound shows no field dependence. The implication is discussed.

Original languageEnglish
Pages (from-to)25-27
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume62
Issue number1-2
DOIs
Publication statusPublished - Jan 2001
Externally publishedYes

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cuprates
Nuclear magnetic resonance
Magnetic fields
nuclear magnetic resonance
Spin-lattice relaxation
magnetic fields
spin-lattice relaxation
nuclear spin

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Spin-gap and the superconducting fluctuations in high-Tc cuprates probed by 63Cu NMR. / Zheng, Guo-Qing; Ozaki, H.; Kitaoka, Y.; Clark, W. G.; Kodama, Y.; Kondo, T.; Shimakawa, Y.; Kubo, Y.; Kuhns, P.; Reyes, A. P.; Moulton, W. G.

In: Journal of Physics and Chemistry of Solids, Vol. 62, No. 1-2, 01.2001, p. 25-27.

Research output: Contribution to journalArticle

Zheng, G-Q, Ozaki, H, Kitaoka, Y, Clark, WG, Kodama, Y, Kondo, T, Shimakawa, Y, Kubo, Y, Kuhns, P, Reyes, AP & Moulton, WG 2001, 'Spin-gap and the superconducting fluctuations in high-Tc cuprates probed by 63Cu NMR', Journal of Physics and Chemistry of Solids, vol. 62, no. 1-2, pp. 25-27. https://doi.org/10.1016/S0022-3697(00)00095-0
Zheng, Guo-Qing ; Ozaki, H. ; Kitaoka, Y. ; Clark, W. G. ; Kodama, Y. ; Kondo, T. ; Shimakawa, Y. ; Kubo, Y. ; Kuhns, P. ; Reyes, A. P. ; Moulton, W. G. / Spin-gap and the superconducting fluctuations in high-Tc cuprates probed by 63Cu NMR. In: Journal of Physics and Chemistry of Solids. 2001 ; Vol. 62, No. 1-2. pp. 25-27.
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AU - Kondo, T.

AU - Shimakawa, Y.

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