Andreev scattering in the anisotropic heavy-fermion superconductor UPt3

Goll, G. and Bruder, C. and Vonlohneysen, H.. (1995) Andreev scattering in the anisotropic heavy-fermion superconductor UPt3. Physical Review B, Vol. 52, H. 9. pp. 6801-6807.

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Official URL: http://edoc.unibas.ch/dok/A5839239

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Andreev reflection between a normal metal and a superconductor was employed to investigate the superconducting order parameter of the heavy-fermion superconductor UPt3. In the present work, point-contact spectra are compared with dV/dI curves calculated assuming different order-parameter symmetries, and that the electrons are injected preferentially in the forward direction with an angular spread described by a cone. Various order-parameter structures are compared for nonideal interfaces of d-wave superconductors and different directions of current flow. The analysis favors a two-dimensional order parameter with an orbital part with a, line of nodes in the basal plane and point nodes along the c axis.
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
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:43

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