Electron transport through YBa2Cu3O7-delta grain boundary interfaces between 4.2 and 300 K.
Phys Rev Lett
; 92(25 Pt 1): 257003, 2004 Jun 25.
Article
in En
| MEDLINE
| ID: mdl-15245051
ABSTRACT
The current-induced dissipation in YBa(2)Cu(3)O(7-delta) grain boundary tunnel junctions has been measured between 4.2 and 300 K. It is found that the resistance of 45 degrees (100)/(110) junctions decreases linearly by a factor of 4 when their temperature is increased from 100 to 300 K. At the superconducting transition temperature T(c) the grain boundary resistance of the normal state and of the superconducting state extrapolates to the same value.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2004
Document type:
Article