Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-29T07:32:57.041Z Has data issue: false hasContentIssue false

Penetration Depth Measurements of YBa2Cu3O7-δ at 4 MHz

Published online by Cambridge University Press:  28 February 2011

H. Wiesmann
Affiliation:
Brookhaven National Laboratory, Upton, NY 11973
R. R. Corderman
Affiliation:
Brookhaven National Laboratory, Upton, NY 11973
A. R. Moodenbaugh
Affiliation:
Brookhaven National Laboratory, Upton, NY 11973
M. W. Ruckman
Affiliation:
Brookhaven National Laboratory, Upton, NY 11973
Myron Strongin
Affiliation:
Brookhaven National Laboratory, Upton, NY 11973
Get access

Abstract

Measurements were made of the penetration depth of bulk and powder samples of YBa2Cu3O7-δ. The samples were placed in an inductor which was part of the resonant circuit of a 4 MHz tunnel diode oscillator. The oscillator was stable to at least 1 part in 106 at 77 K. Changes in the sample susceptibility were easily detected by changes in the oscillator frequency. Analysis of the smallest powders fabricated gave a value of the measured penetration depth λmea = 0.23 μm. The measurement methodology is quantitative and the value of Xmea is believed to be an upper bound of the true penetration depth.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Kossler, W., Kempton, J., Moodenbaugh, A., Opie, D., Schone, H., Stronach, C., Suenaga, M., Uemura, Y., and Yu, X., Muon Spin Relaxation Studies on High-Tc Superconductors, U.C. Berkley High-Tr Superconductor Workshop, June 2226 (1987).Google Scholar
2. Felici, R., Penfold, J., Ward, R. C., Olsi, E., and Matacotta, C., Nature 329, 523 (1987).Google Scholar
3. Corderman, R. R., Wiesmann, H., Ruckman, M. W., and Strongin, M. in Novel Superconductivity, edited by Wolf, S. A. and Kresin, V. Z. (International Workshop on Novel Mechanisms of Superconductivity, Berkeley, CA 1987) pp. 759762.Google Scholar
4. Clem, J. R. and Kogan, V. G., presented at The XVIII International Conf. on Low Temperature Physics, Kyoto, Japan, 1987; M. Strongin and D. O. Welch (unpublished).Google Scholar