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Jpn. J. Appl. Phys. 28 (1989) pp. L920-L922  |Next Article|  |Table of Contents|
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Letter

Hydrogen Profiling of High Temperature Superconductors

H. P. Schölch, M. Weiser¹, S. Kalbitzer¹ and G. Saemann-Ischenko²

Hoechst AG, ZF II
¹Max-Planck-Institut für Kernphysik
²Universität Erlangen-Nürnberg, Physikalisches Institut

(Received April 27, 1989; accepted for publication May 10, 1989)

Hydrogen distributions of high temperature superconductor bulk and film material, YBaCuO and BiSrCaCuO, have been determined up to depths of 1 µm. In both annealed and non-annealed samples widely varying volume concentrations, from less than 0.1 up to more than 10 at.%, respectively, have been found. The preparation conditions of the films strongly influence the hydrogen content. Surprisingly, no correlation at all of hydrogen content with stoichiometry, structure and critical temperature is observed.

URL: http://jjap.jsap.jp/link?JJAP/28/L920/
DOI: 10.1143/JJAP.28.L920

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