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Anisotropic Josephson effects in point contacts between the heavy fermion superconductor URu₂Si₂ and Nb

Wasser, S. and Nowack, A. and Schlabitz, W. and Freimuth, A. and Kvitnitskaya, O. E. and Menovsky, A. A. and Bruder, C.. (1998) Anisotropic Josephson effects in point contacts between the heavy fermion superconductor URu₂Si₂ and Nb. Physical review letters, Vol. 81, H. 4. pp. 898-901.

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Official URL: http://edoc.unibas.ch/dok/A5252859

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Abstract

Point contacts between the heavy-fermion superconductor URu(2)S(i)2 and Nb are studied. A finite de Josephson current is found in contacts aligned parallel to the a-b directions of URu2Si2 whereas it is absent in contacts aligned along the c direction. We attribute this extreme anisotropy; of the Josephson current to an unconventional superconducting order parameter in URu2Si2, with a symmetry leading to destructive interference for Josephson currents along the c direction.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Physical Society
ISSN:0031-9007
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:52

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