Tl, Cu-NMR study on high-Tc cuprate TlBa2Y1-xCaxCu2O7

Y. Kunii, T. Suzuki, A. Kakishima, T. Goto, S. Nakajima, T. Fukase

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Tl, Cu-NMR study has been performed on the high-Tc cuprate, TlBa2Y1-xCaxCu2O7 with wide range hole concentration from the antiferromagnetic (x = 0) to the slightly overdoped (x = 1.0). For superconducting samples (x = 0.6-1.0) the local spin susceptibility (KS) at Cu-site stayed constant around room temperature, and starts slight a decrease from 160 K, which is higher than Tc. This T-dependence is what has been reported in other high-Tc cuprates in overdoped region. (T1T)-1 at Tl-site for every superconducting sample, which obeys Curie-Weiss law at high temperature, showed a significant reduction from TSG (> Tc), suggesting the existence of spin-gap even in slightly overdoped region.

Original languageEnglish
Pages (from-to)257-258
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume388-389
DOIs
Publication statusPublished - 2003 May
Externally publishedYes

Fingerprint

cuprates
Nuclear magnetic resonance
Hole concentration
nuclear magnetic resonance
Curie-Weiss law
magnetic permeability
Temperature
room temperature

Keywords

  • High-T cuprate
  • NMR
  • Spin-gap

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Tl, Cu-NMR study on high-Tc cuprate TlBa2Y1-xCaxCu2O7. / Kunii, Y.; Suzuki, T.; Kakishima, A.; Goto, T.; Nakajima, S.; Fukase, T.

In: Physica C: Superconductivity and its Applications, Vol. 388-389, 05.2003, p. 257-258.

Research output: Contribution to journalArticle

Kunii, Y. ; Suzuki, T. ; Kakishima, A. ; Goto, T. ; Nakajima, S. ; Fukase, T. / Tl, Cu-NMR study on high-Tc cuprate TlBa2Y1-xCaxCu2O7. In: Physica C: Superconductivity and its Applications. 2003 ; Vol. 388-389. pp. 257-258.
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