d-wave induced zero-field resonances in de pi-superconducting quantum interference devices

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Chesca, B. and Schulz, R.R. and Goetz, B. and Schneider, C.W. and Hilgenkamp, H. and Mannhart, J. (2002) d-wave induced zero-field resonances in de pi-superconducting quantum interference devices. Physical Review Letters, 88 (17). 177003/1-177003/4. ISSN 0031-9007

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Abstract:A dc ¿ SQUID consists of a superconducting ring interrupted by two Josephson junctions, one of which carries in equilibrium a ¿ phase difference, caused, for example, by the d-wave pairing symmetry of the high- Tc cuprates. If this phase shift is maintained in the voltage state, anomalous resonance currents are expected in the SQUIDs transport characteristics. Here we report the observation of such resonances for high- Tc dc ¿ SQUIDs, providing evidence for the influence of the d-wave symmetry on the voltage state of a Josephson junction for frequencies of several tens of GHz.
Item Type:Article
Copyright:© 2002 The American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/43438
Official URL:http://dx.doi.org/10.1103/PhysRevLett.88.177003
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