Light-scattering study of the superconducting energy gap in Y single crystals
- 1 October 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 38 (10), 7133-7136
- https://doi.org/10.1103/physrevb.38.7133
Abstract
Raman scattering experiments have been performed on single-crystal samples of Y in order to investigate superconducting gap excitations. The electronic contribution to the total scattering intensity can be fitted well by a theoretical model of light scattering from quasiparticle pairs. Depending on the measuring symmetry, mean gap energies are found ranging from 3.0 to .
Keywords
This publication has 12 references indexed in Scilit:
- Ellipsometric spectra of YBa2Cu3O7 in the 1.7 – 5.3 eV rangeSolid State Communications, 1988
- Raman scattering from superconducting gap excitations in single-crystalPhysical Review B, 1988
- Determination of the energy gap in a thin YBa2Cu3O7−x film by Andreev reflection and by tunnelingPhysica C: Superconductivity and its Applications, 1988
- Transport Properties of YBa 2 Cu 3 O 7 : Resistivity, Thermal Conductivity, Thermopower and Hall EffectEurophysics Letters, 1987
- Raman detection of the superconducting gap in Ba-Y-Cu-O superconductorsPhysical Review B, 1987
- Flux quantization in a high-Tc superconductorNature, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
- Possible highT c superconductivity in the Ba?La?Cu?O systemZeitschrift für Physik B Condensed Matter, 1986
- Theory of Raman scattering in superconductorsPhysical Review B, 1984
- Electronic Raman Scattering by Superconducting-Gap Excitations inSn andSiPhysical Review Letters, 1983