Journal of Applied Physics, volume 114, issue 24, pages 243903
The effect of bias current asymmetry on the flux-flow steps in the grain boundary YBaCuO long Josephson junctions
L S Revin
1, 2
,
A V Chiginev
1, 2
,
A. L. PANKRATOV
1, 2
,
D. V. Masterov
1
,
A. E. Parafin
1
,
G. A. Luchinin
1, 3
,
E A Matrozova
2
,
L S Kuzmin
2, 4
Publication type: Journal Article
Publication date: 2013-12-26
Journal:
Journal of Applied Physics
scimago Q2
SJR: 0.649
CiteScore: 5.4
Impact factor: 2.7
ISSN: 00218979, 10897550
General Physics and Astronomy
Abstract
The current-voltage characteristics and critical current versus magnetic field dependence of long 24°[001]-tilt YBa2Cu3O7−δ bicrystal grain-boundary junctions are studied both experimentally and theoretically. For the opposite magnetic field directions, the flux-flow steps with significantly different height and slope are observed. It is demonstrated that the most probable reason of this discrepancy is recently predicted asymmetry of spatial bias current distribution due to crystallographic anisotropy of bicrystal substrates [Kupriyanov et al., JETP Lett. 95, 289 (2012)].
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