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

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
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: 2002 Nov 11 → 2002 Nov 13

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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

Cite this

Itoh, Y., Machi, T., Kasai, C., Adachi, S., Koshizuka, N., & Murakami, M. (2003). Cu NQR satellite of Zn-substituted YBa₂Cu₃O _7-δ. Physica C: Superconductivity and its applications, 392-396(PART 1), 166-170. https://doi.org/10.1016/S0921-4534(03)00726-3

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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",

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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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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 -

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10.1016/S0921-4534(03)00726-3