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Enhanced diamagnetism in YBa2Cu3O7−δ by hydorgen-plasma treatment

✍ Scribed by M.W. Lee; M.F. Tai; H.J. Lee; H.L. Hwang; H.-C.I. Kao

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
376 KB
Volume
230
Category
Article
ISSN
0921-4534

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✦ Synopsis

We report that the diamagnetism of as-grown YBa2Cu307_6 powders can be enhanced by treatment with RF-generated hydrogen plasma. The field-cooling susceptibility at 5 K is found to increase by up to 24%. The enhancement is reproducible for all five samples studied. The lattice parameter c decreases after hydrogenation. For a sample treated for the shortest period, its pinning potential, obtained from magnetic relaxation measurements, is reduced following H-treatment.

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