Paramagnetic effect inYBCO grain boundary junctions
| Autor: | E. IL'ICHEV, M. GRAJCAR, R. P. J. IJSSELSTEIJN, J. WEBER, F. LOMBARDI AND J. R. KIRTLEY, TAFURI, Francesco |
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| Přispěvatelé: | E., Il'Ichev, Tafuri, Francesco, M., Grajcar, R. P. J., Ijsselsteijn, J., Weber, F. LOMBARDI AND J. R., Kirtley |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Popis: | A detailed investigation of the magnetic response of YBa2Cu3Ox grain-boundary Josephson junctions has been carried out using both radio-frequency measurements and scanning superconducting quantum interference device microscopy. In a nominally zero-field-cooled regime we observed a paramagnetic response at low external fields for 45° asymmetric grain boundaries. We argue that the observed phenomenology results from the d-wave order-parameter symmetry and depends on Andreev bound states. |
| Databáze: | OpenAIRE |
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