ABSENCE OF MAGNETIC PAIR-BREAKING IN ZN-DOPED YBA2CU3O7
UNSPECIFIED (1993) ABSENCE OF MAGNETIC PAIR-BREAKING IN ZN-DOPED YBA2CU3O7. [Journal Item]Full text not available from this repository.
Cu-63(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, J(eff) = 20 meV, is more than an order of magnitude too small to account for the suppression of T(c) 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.
|Item Type:||Journal Item|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICAL REVIEW B|
|Publisher:||AMERICAN PHYSICAL SOC|
|Date:||1 October 1993|
|Number of Pages:||4|
|Page Range:||pp. 10646-10649|
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