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- Title
Nonlinear Seebeck effect in a model granular superconductor.
- Authors
Sergeenkov, S. A.
- Abstract
The change of the Josephson supercurrent density j[sub s] of a weakly connected granular superconductor in response to externally applied arbitrary thermal gradient ∇T (nonlinear Seebeck effect) is considered within a model of 3D Josephson junction arrays. For ∇T>(∇T)[sub c], where (∇T)[sub c] is estimated to be of the order of =10[sup 4] K/m for YBCO ceramics with an average grain size d=10 μm, the weak-links-dominated thermopower S is predicted to become strongly ∇T-dependent. © 1998 American Institute of Physics.
- Subjects
SEMICONDUCTORS; JOSEPHSON junctions
- Publication
JETP Letters, 1998, Vol 67, Issue 9, p680
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567701