Construction of a Cantilever-Andreev-Tunneling rig and its applications to superconductors

W. K. Park, L. H. Greene

Research output: Contribution to journalArticle

Abstract

A technique for point-contact spectroscopy, based on an electromechanical mechanism for the contact formation, has been developed. It is designed to be used in both He4 and He3 cryostats. The performance has been demonstrated by conductance measurements on various kinds of superconductors, including the conventional superconductor Nb, the two-band superconductor MgB2, and the heavy-fermion superconductor CeCoIn5. Characteristic conductance spectra obtained prove that this technique is useful for the investigation of the superconducting order parameter. Advantages of this technique such as its simplicity and versatility are described.

Original languageEnglish (US)
Article number023905
JournalReview of Scientific Instruments
Volume77
Issue number2
DOIs
StatePublished - Mar 8 2006

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ASJC Scopus subject areas

  • Instrumentation

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