Phys. Rev. Lett. 77, 5421–5424 (1996)Muon Spin Relaxation Studies of Zn-Substitution Effects in High- Tc Cuprate SuperconductorsReceived 12 September 1996; published in the issue dated 30 December 1996 We have performed transverse-field muon spin relaxation measurements of the Zn-substituted cuprate high- Tc superconductors: La2-xSrx(Cu1-yZny)O4 and YBa2(Cu1-yZny)3O6.63. The superconducting carrier density/effective mass ns/m* ratio at T→0 decreases with increasing Zn concentration, in a manner consistent with our “swiss cheese” model in which charge carriers within an area πξab2 around each Zn are excluded from the superfluid. We discuss this result in the context of Bose condensation, pair localization, and pair breaking. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.5421
DOI:
10.1103/PhysRevLett.77.5421
PACS:
74.62.Dh, 76.75.+i
See AlsoComment: C. Bernhard, J. L. Tallon, C. Bucci, R. DeRenzi, G. Guidi, G. V. Williams, and Ch. Niedermayer, Comment on “Muon Spin Relaxation Studies of Zn-Substitution Effects in High- Tc Cuprate Superconductors”, Phys. Rev. Lett. 80, 205 (1998). Reply: B. Nachumi,, A. Keren, K. H. Kojima, M. Larkin, G. M. Luke, J. Merrin, O. Techernyshöv, Y. J. Uemura, N. Ichikawa, M. Goto, and S. Uchida, Nachumi et al. Reply:, Phys. Rev. Lett. 80, 206 (1998). |
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