Cu NQR satellite of Zn-substituted YBa2Cu3O 7-δ

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

doi:10.1016/S0921-4534(03)00726-3

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 journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

We studied the main and the satellite signals of plane-site Cu(2) nuclear quadrupole resonance (NQR) spectra in optimally doped YBa₂(Cu _1-xZn_x)₃O_7-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 YBa₂Cu₃O_y. 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 language	English
Pages (from-to)	166-170
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)00726-3
Publication status	Published - 2003 Oct 1
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

Keywords

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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Cite this

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title = "Cu NQR satellite of Zn-substituted YBa2Cu3O 7-δ",

abstract = "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.",

keywords = "Nonmagnetic impurity effect, Nuclear quadrupole resonance, Nuclear spin-lattice relaxation, YBa(Cu Zn) O",

author = "Y. Itoh and T. Machi and C. Kasai and S. Adachi and N. Koshizuka and M. Murakami",

year = "2003",

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note = "Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

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TY - JOUR

T1 - Cu NQR satellite of Zn-substituted YBa2Cu3O 7-δ

AU - Itoh, Y.

AU - Machi, T.

AU - Kasai, C.

AU - Adachi, S.

AU - Koshizuka, N.

AU - Murakami, M.

PY - 2003/10/1

Y1 - 2003/10/1

N2 - 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.

AB - 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.

KW - Nonmagnetic impurity effect

KW - Nuclear quadrupole resonance

KW - Nuclear spin-lattice relaxation

KW - YBa(Cu Zn) O

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DO - 10.1016/S0921-4534(03)00726-3

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VL - 392-396

SP - 166

EP - 170

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - PART 1

T2 - Proceedings of the 15th International Symposium on Superconduc

Y2 - 11 November 2002 through 13 November 2002

ER -