Through the coupling of Synchrotron Radiation and Michelson interferometry, one may obtain in the terahertz (THz) range transmittance and reflectivity spectra with a signal-to-noise ratio (S/N) up to 10(3). In this paper we review the application of this spectroscopic technique to novel superconductors with an increasing degree of complexity: the single-gap boron-doped diamond; the isotropic multiband V3Si, where superconductivity opens two gaps at the Fermi energy; the CaAlSi superconductor, isostructural to MgB2, with a single gap in the hexagonal ab plane and two gaps along the orthogonal c axis.
Terahertz Spectroscopy of Novel Superconductors / Lupi, Stefano. - In: ADVANCES IN CONDENSED MATTER PHYSICS. - ISSN 1687-8108. - STAMPA. - 2011:(2011), pp. 1-9. [10.1155/2011/816906]