Intrinsic d-wave effects in YBa(2)Cu(3)O(7-delta) grain boundary Josephson junctions |
| |
Authors: | Lombardi F Tafuri F Ricci F Miletto Granozio F Barone A Testa G Sarnelli E Kirtley J R Tsuei C C |
| |
Affiliation: | INFM-Coherentia, Dipartimento Scienze Fisiche, Università di Napoli Federico II, Naples, Italy. |
| |
Abstract: | We have measured the angular dependence of the Josephson critical current density (J(C)) in c-axis tilt biepitaxial grain boundary YBa(2)Cu(3)O(7-delta) junctions. We observe for the first time intrinsic d-wave pairing symmetry effects manifested as an oscillatory dependence of J(C) on angle. This intrinsic effect is evident even though spontaneous currents, possibly induced by faceting or barrier impurities, are observed in the grain boundaries. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|