Hole filling and pair breaking by Pr ions in YBa2Cu3O6.95±0.02

J. J. Neumeier, T. Bjørnholm, M. B. Maple, and Ivan K. Schuller
Phys. Rev. Lett. 63, 2516 – Published 27 November 1989
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Abstract

Measurements of the superconducting critical temperature Tc are reported for the (Y1xyCay)PrxBa2Cu3O7δ system as a function of x and y. The Tc vs c curves at fixed values of x can be resolved into two contributions: (1) the counteracting effects of generation and filling of holes in the CuO2 sheets by Ca2+ and Pr4+ ions, respectively, and (2) the depairing of superconducting electrons via exchange scattering of the mobile holes in the CuO2 sheets by the Pr magnetic moments.

  • Received 26 May 1989

DOI:https://doi.org/10.1103/PhysRevLett.63.2516

©1989 American Physical Society

Authors & Affiliations

J. J. Neumeier, T. Bjørnholm, M. B. Maple, and Ivan K. Schuller

  • Department of Physics and Institute for Pure and Applied Physical Sciences, University of California, San Diego, La Jolla, California 92093

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Vol. 63, Iss. 22 — 27 November 1989

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