Absence of magnetic pair breaking in Zn-doped YBa2Cu3O7

R. E. Walstedt; R. F. Bell; L. F. Schneemeyer; J. V. Waszczak; W. W. Warren; R. Dupree; A. Gencten

doi:10.1103/PhysRevB.48.10646

Absence of magnetic pair breaking in Zn-doped YBa2Cu3O7

R. E. Walstedt
, R. F. Bell
, L. F. Schneemeyer
, J. V. Waszczak
, W. W. Warren
, R. Dupree
, A. Gencten

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

99 Scopus citations

Abstract

Cu63(2) NMR linewidths in Zn-doped YBa2Cu3O7 exhibit a predominant component proportional to T-1 in the normal state. We attribute this result to spin-exchange scattering of carriers from localized moments associated with Zn impurities in the CuO2 planes. The estimated moment-carrier exchange, Jeff=20 meV, is more than an order of magnitude too small to account for the suppression of Tc in this system via Abrikosov-Gorkov pair breaking. A suggested alternative explanation is pair breaking by strong potential scattering from the Zn impurity sites which requires d-wave pairing.

Original language	English
Pages (from-to)	10646-10649
Number of pages	4
Journal	Physical Review B
Volume	48
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.48.10646
State	Published - 1993

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10.1103/PhysRevB.48.10646

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title = "Absence of magnetic pair breaking in Zn-doped YBa2Cu3O7",

abstract = "Cu63(2) NMR linewidths in Zn-doped YBa2Cu3O7 exhibit a predominant component proportional to T-1 in the normal state. We attribute this result to spin-exchange scattering of carriers from localized moments associated with Zn impurities in the CuO2 planes. The estimated moment-carrier exchange, Jeff=20 meV, is more than an order of magnitude too small to account for the suppression of Tc in this system via Abrikosov-Gorkov pair breaking. A suggested alternative explanation is pair breaking by strong potential scattering from the Zn impurity sites which requires d-wave pairing.",

author = "Walstedt, \{R. E.\} and Bell, \{R. F.\} and Schneemeyer, \{L. F.\} and Waszczak, \{J. V.\} and Warren, \{W. W.\} and R. Dupree and A. Gencten",

year = "1993",

doi = "10.1103/PhysRevB.48.10646",

language = "English",

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journal = "Physical Review B",

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T1 - Absence of magnetic pair breaking in Zn-doped YBa2Cu3O7

AU - Walstedt, R. E.

AU - Bell, R. F.

AU - Schneemeyer, L. F.

AU - Waszczak, J. V.

AU - Warren, W. W.

AU - Dupree, R.

AU - Gencten, A.

PY - 1993

Y1 - 1993

N2 - Cu63(2) NMR linewidths in Zn-doped YBa2Cu3O7 exhibit a predominant component proportional to T-1 in the normal state. We attribute this result to spin-exchange scattering of carriers from localized moments associated with Zn impurities in the CuO2 planes. The estimated moment-carrier exchange, Jeff=20 meV, is more than an order of magnitude too small to account for the suppression of Tc in this system via Abrikosov-Gorkov pair breaking. A suggested alternative explanation is pair breaking by strong potential scattering from the Zn impurity sites which requires d-wave pairing.

AB - Cu63(2) NMR linewidths in Zn-doped YBa2Cu3O7 exhibit a predominant component proportional to T-1 in the normal state. We attribute this result to spin-exchange scattering of carriers from localized moments associated with Zn impurities in the CuO2 planes. The estimated moment-carrier exchange, Jeff=20 meV, is more than an order of magnitude too small to account for the suppression of Tc in this system via Abrikosov-Gorkov pair breaking. A suggested alternative explanation is pair breaking by strong potential scattering from the Zn impurity sites which requires d-wave pairing.

UR - https://www.scopus.com/pages/publications/0000544912

U2 - 10.1103/PhysRevB.48.10646

DO - 10.1103/PhysRevB.48.10646

M3 - Article

AN - SCOPUS:0000544912

SN - 0163-1829

VL - 48

SP - 10646

EP - 10649

JO - Physical Review B

JF - Physical Review B

IS - 14

ER -

Absence of magnetic pair breaking in Zn-doped YBa2Cu3O7

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