Probing multiband superconductivity by point-contact spectroscopy

By D. Daghero, R. Gonnelli. 2009

213 citations recorded by the source corpus.

Point-contact spectroscopy was originally developed for the determination of the electron–phonon spectral function in normal metals. However, in the past 20 years it has become an important tool in the investigation of superconductors. As a matter of fact, point contacts between a normal metal and a superconductor can provide information on the amplitude and symmetry of the energy gap that, in the superconducting state, opens up at the Fermi level. In this paper we review the experimental and theoretical aspects of point-contact spectroscopy in superconductors, and we give an experimental survey of the most recent applications of this technique to anisotropic and multiband superconductors.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/51d18c7b6cc69595e5d0a8c4d16b876404a42d95

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In Condensed Matter Physics

1. Su-Yang Xu
2. Chen Fang
3. M. Zahid Hasan
4. G. Bian

Citations in the corpus

• Momentum-space imaging of Cooper pairing in a half-Dirac-gas topological superconductor (2014, methodology): “We studied the point contact spectroscopy on both NbSe2 single crystal and NbSe2/Bi2Se3 heterostructure samples by the so-called “soft” point contact technique [15].”