Cu NQR satellite of Zn-substituted YBa2Cu3O 7-δ

Y. Itoh, T. Machi, C. Kasai, S. Adachi, N. Koshizuka, M. Murakami

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


We studied the main and the satellite signals of plane-site Cu(2) nuclear quadrupole resonance (NQR) spectra in optimally doped YBa2(Cu 1-xZnx)3O7-δ. The Cu nuclear spin-lattice relaxation time is found to distribute in the broadened Cu(2) NQR spectra. This is in contrast to nearly frequency independent relaxation in slightly oxygen-deficient YBa2Cu3Oy. The Cu nuclear spin-lattice relaxation time of the Zn-induced satellite signal is shorter than that of the main signal, suggesting a locally enhanced magnetic correlation by Zn. From the analysis of Zn-induced Cu NQR relaxation, the origin of pair-breaking mechanism due to Zn impurity is discussed.

Original languageEnglish
Pages (from-to)166-170
Number of pages5
JournalPhysica C: Superconductivity and its applications
Issue numberPART 1
Publication statusPublished - 2003 Oct
Externally publishedYes
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: 2002 Nov 112002 Nov 13


  • Nonmagnetic impurity effect
  • Nuclear quadrupole resonance
  • Nuclear spin-lattice relaxation
  • YBa(Cu Zn) O

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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