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Long Time Power Law Magnetic Relaxation in Detwinned YBa2Cu3O7-δ Single Crystals

Published online by Cambridge University Press:  26 February 2011

Lu Zhang ,
J. Z. Liu ,
M. D. Lan ,
P. Klavins  and
R. N. Shelton
Lu Zhang
Affiliation:
University of California, Davis, CA 95616
J. Z. Liu
Affiliation:
University of California, Davis, CA 95616
M. D. Lan
Affiliation:
University of California, Davis, CA 95616
P. Klavins
Affiliation:
University of California, Davis, CA 95616
R. N. Shelton
Affiliation:
University of California, Davis, CA 95616
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Abstract

The time-dependent magnetic relaxation was measured in a full field penetrated YBa2Cu3O7-δ detwinned crystal for long times up to 5×105 sec. The relaxation data exhibit a power-law time dependence over a wide range of temperatures and magnetic fields indicative of flux creep with logarithmic dependence of the effective creep activation barrier U(J). A theoretical model is employed to analyze the data and to determine the activation energy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 275: Symposium S – Layered Superconductors: Fabrication, Properties and Applications , 1992 , 867
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCE

[1] Yeshurun, Y. et al., Phys. Rev. Lett. 60, 2202 (1987); Phys. Rev. B 18, 11828 (1988).Google Scholar
[2] Zhang, Lu, Liu, J. Z., Lan, M. D., Klavins, P. and Shelton, R. N., Phys. Rev. B 44, 10190 (1991).Google Scholar
[3] Anderson, P. W., Phys. Rev. Lett. 9, 309 (1962).Google Scholar
[4] Beasley, M. R. et al., Phys. Rev. B181, 682 (1969).Google Scholar
[5] Campbell, A. M. et al., Adv. Phys. 21, 199 (1972).Google Scholar
[6] Xu, Y. et al., Phys. Rev. B 40, 10882 (1989).Google Scholar
[7] Maley, M. P. et al., Phys. Rev. B 42, 2639 (1990).Google Scholar
[8] Zeldov, E. et al., Appl. Phys. Lett. 56, 680 (1990).Google Scholar
[9] Vinodur, V. M. et al., Phys. Rev. Lett. 62, 915 (1991).Google Scholar
[10] Liu, J. Z., Zhang, Lu, Lan, M. D., and Shelton, R. N., submitted to Phys. Rev. Lett.Google Scholar
[11] Liu, J. Z., Lan, M. D., Klavins, P., and Shelton, R. N., Phys. Lett. A 144, 265 (1990).Google Scholar
[12] Liu, J. Z., Jia, Y. X., and Shelton, R. N., Phys. Rev. Lett. 66, 1354 (1991)Google Scholar
[13] Quantum Design, Inc. San Diego, CA.Google Scholar
[14] Civaie, L. et al. Phys. Rev. Lett. 65, 1164 (1991).Google Scholar