High-field measurements on YBCO

Autor: Smith, J. L., Brooks, J. S., Fowler, C. M., Freeman, B. L., Goettee, J. D., Hults, W. L., King, J. C., Mankiewich, P. M., Obaldia, E. I., O'Malley, M. L., Rickel, D. G., Skocpol, W. J.
Zdroj: Journal of Low Temperature Physics; April 1994, Vol. 95 Issue: 1-2 p75-81, 7p
Abstrakt: We have performed resistance measurements on thin films of the high-temperature superconductor YBa2Cu3O7 (YBCO) in applied magnetic fields to above 200 T (2 MegaOersted) at temperatures as low as 2.5 K. The fields are produced by an explosively driven flux-compression system. We can see a particularly clear onset, without replotting the data, of the “hydrodynamic” flow of vortices probably because of the very fast increasing field. The low-temperature “critical field” for the field parallel to the c-axis of the sample is 135 T. Our data in the other direction are still preliminary. We discuss possible interpretation of our results.
Databáze: Supplemental Index
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