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Phys. Rev. Lett. 70, 1870–1873 (1993)

Role of vortex fluctuations in determining superconducting parameters from magnetization data for layered superconductors

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V. G. Kogan, M. Ledvij, A. Yu. Simonov, J. H. Cho, and D. C. Johnston
Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011-3020

Received 10 December 1992; published in the issue dated 22 March 1993

The fluctuations of vortices in Josephson-coupled layered superconductors are shown to have a profound effect on values of the temperature-dependent penetration depth, Ginzburg-Landau parameter, and upper critical field extracted from reversible magnetization data below the critical temperature.

© 1993 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.1870
DOI:
10.1103/PhysRevLett.70.1870
PACS:
74.60.Ge, 74.25.Ha, 74.25.Nf, 74.72.-h