Babic, D. and Bentner, J. and Surgers, C. and Strunk, C. (2004) Flux-flow instabilities in amorphous Nb0.7Ge0.3 microbridges. PHYSICAL REVIEW B, 69 (9): 092510. ISSN 1098-0121, 1550-235X
Full text not available from this repository. (Request a copy)Abstract
We report measurements of the electric field vs current density [E(J)] characteristics in the mixed state of amorphous Nb0.7Ge0.3 microbridges. Close to the transition temperature T-c the Larkin-Ovchinnikov theory of nonlinear flux flow and the related instability describes the data quantitatively up to similar to70% of the upper critical magnetic field B-c2 and over a wide electric-field range. At lower temperatures the nonlinearities of E(J) can be described by electron heating which reduces B-c2 and leads to a second type of flux flow instability, as shown by a scaling analysis of the high-dissipation data.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SUPERCONDUCTING FILMS; YBA2CU3O7-DELTA; LATTICE; ENERGY; LINE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Jul 2021 11:29 |
| Last Modified: | 21 Jul 2021 11:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37971 |
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