Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T17:35:34.093Z Has data issue: false hasContentIssue false

Low-Field Microwave Absorption in High-TC Superconducting Oxides

Published online by Cambridge University Press:  28 February 2011

B. L. Ramakrishna
Affiliation:
Department of Chemistry, Arizona State University, Tempe, AZ 85287, USA
E. W. Ong
Affiliation:
Department of Chemistry, Arizona State University, Tempe, AZ 85287, USA
Z. Iqbal
Affiliation:
Allied-Signal Inc., Corporate Technology, Morristown, NJ 07960, USA
Get access

Abstract

Low-field non-resonant microwave absorption in an EPR spectrometer has been observed in the superconducting state of different samples of the new high-T oxides, YBa2Cu3O7-δ and La1.8Sr0.2CuO4. It has been attributed to flux slippage occurring at the Josephson junctions existing in the granular composite material. The dependence on particle size, temperature, microwave power, DC modulation amplitude and magnetic field has been studied.

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. a) Bednorz, G. and Muller, K.A., Z. Phys. B64, 189 (1986);Google Scholar
b) Wu, M.K., et al, Phys. Rev. Lett., 58, 908 (1987).Google Scholar
2. Ebner, C. and Stroud, D., Phys. Rev., B31, 165 (1985).Google Scholar
3. Muller, K.A., Takashige, M. and Bednorz, J.G., Phys. Rev. Lett., 58, 1143 (1987).Google Scholar
4. a) Bhat, S.V. et al, J. Phys. 20, L559 (1987);Google Scholar
b) Durny, B., et al, Phys. Rev., B36, 2361 (1987);Google Scholar
c) Rettori, C., et al, Phys. Rev., B36, 4028 (1987);Google Scholar
d) Blazey, K.W., et al, Phys. Rev., B36 7241 (1987).Google Scholar
6. Iqbal, Z., et al, J. Mater. Res., 2, 768 (1987).Google Scholar
7. Cava, R.J., et al, Phys. Rev. Lett., 58, 408 (1987).Google Scholar
8. Ong, E.W., Ramakrishna, B.L. and Iqbal, Z., Solid State Commun.-submitted.Google Scholar