Title

Characteristics of CeCoIn5/Al/AlOx/Nb and CeCoIn5/Al/AlOx/Al tunnel junctions

Document Type

Journal Article

Publication Details

Nevirkovets, IP, Chernyashevskyy, O, Petrovic, C, Hu, R, Ketterson, JB & Sarma, BK (2009), Characteristics of CeCoIn5/Al/AlOx/Nb and CeCoIn5/Al/AlOx/Al tunnel junctions, Physica C: Superconductivity and its Applications, 469(7-8), pp. 293-296.

Abstract

We report characteristics of CeCoIn5/Al/AlOx/Nb and CeCoIn5/Al/AlOx/Al tunnel junctions fabricated on the (0 0 1) surface of CeCoIn5 crystal platelets. The main result of this work is the observation of a low Josephson current (as compared with that expected from the Ambegaokar–Baratoff formula), which is consistent with idea that the order parameter in the heavy-fermion superconductor CeCoIn5 has unconventional pairing symmetry.

RIS ID

31358

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.physc.2009.02.013