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

研究成果: Conference article › 査読

4 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	166-170
ページ数	5
ジャーナル	Physica C: Superconductivity and its applications
巻	392-396
号	PART 1
DOI	https://doi.org/10.1016/S0921-4534(03)00726-3
出版ステータス	Published - 2003 10
外部発表	はい
イベント	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan 継続期間: 2002 11 11 → 2002 11 13

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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10.1016/S0921-4534(03)00726-3

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引用スタイル

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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",

note = "Funding Information: We would like to thank M. Matsumura, H. Yamagata, K. Mizuno, Y. Ohashi, and M. Ogata for stimulating discussions. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.; Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

year = "2003",

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doi = "10.1016/S0921-4534(03)00726-3",

language = "English",

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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.

N1 - Funding Information: We would like to thank M. Matsumura, H. Yamagata, K. Mizuno, Y. Ohashi, and M. Ogata for stimulating discussions. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2003/10

Y1 - 2003/10

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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U2 - 10.1016/S0921-4534(03)00726-3

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

M3 - Conference article

AN - SCOPUS:0041782891

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 -