139La NQR study of electronic states in metallic compounds (La1-xSrxCuO4

Tatsuo Kobayashi, Shinji Wada, Yoshio Kitaoka, Kunisuke Asayama, Kiichi Amaya

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10 Citations (Scopus)

Abstract

We measured the temperature dependence of the nuclear spin-lattice relaxation time Tx of 139La in metallic compounds (La1-xSrx)2CuO4 with x=0.045, 0.075, 0.10 (high-Tc superconductors) and x=0.15 (nonsuperconductor) by NQR experimentation. T1 for x=0.15 was found to conform to the Korringa relation (T1T= const.) sufficiently, while the T1 for x=0.075 and 0.10 in the normal state showed slightly stronger temperature dependence and were shorter than that for x=0.15, in spite of the increase of hole concentration with increasing x. Fluctuations of Cu d-spins are considered to play an important role for T1 in superconducting compounds. The relaxation behavior in the compound with x=0.045 is also discussed.

Original languageEnglish
Pages (from-to)779-782
Number of pages4
Journaljournal of the physical society of japan
Volume58
Issue number3
DOIs
Publication statusPublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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