Andreev scattering in the anisotropic heavy-fermion superconductor UPt3
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 102839
Author(s) Goll; Bruder; Löhneysen
Author(s) at UniBasel Bruder, Christoph
Year 1995
Title Andreev scattering in the anisotropic heavy-fermion superconductor UPt3
Journal Physical Review B
Volume 52
Number 9
Pages / Article-Number 6801-6807

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.

Publisher American Institute of Physics
ISSN/ISBN 0163-1829
Full Text on edoc No
Digital Object Identifier DOI 10.1103/PhysRevB.52.6801
PubMed ID
ISI-Number WOS:A1995RU54600081
Document type (ISI) Article

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