Construction of a Cantilever-Andreev-Tunneling rig and its applications to superconductors
Park, Wan Kyu · Greene, Laura H.
Original · EN
A technique for point-contact spectroscopy, based on an electro-mechanical mechanism for the contact formation, has been developed. It is designed to be used in both ⁴He and ³He 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 this technique is useful for the investigation of the superconducting order parameter. Advantages of this technique such as its simplicity and versatility are described.
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