Effects of Magnetic and Non-Magnetic Impurities on Anisotropic Singlet Superconductors
- 1 May 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (5A), L771-773
- https://doi.org/10.1143/jjap.26.l771
Abstract
We examine effects of magnetic and non-magnetic impurities on superconductors with anisotropic Cooper pairs of spin-singlet and calculate the tunneling density of states. When the Cooper pair has no component with s-symmetry, magnetic impurities result in the same pair-breaking effect as non-magnetic ones, which is weaker than the usual time-reversal symmetry breaking. The recently discovered high T c magnetic superconducting oxides, R-Ba-Cu-O with R being rare-earth ions, are discussed in the light of the present theory.Keywords
This publication has 9 references indexed in Scilit:
- Far-Infrared Absorption to Test Anisotropy of Energy Gap in High Tc Superconducting OxidesJapanese Journal of Applied Physics, 1987
- Preparation of (La1-xSrx)2CuO4-δ Superconducting Films by Screen Printing MethodJapanese Journal of Applied Physics, 1987
- Critical Temperature of Superconductivity Caused by Strong CorrelationJapanese Journal of Applied Physics, 1987
- High-Tc Superconductivity in New Oxide SystemsJapanese Journal of Applied Physics, 1987
- Magnetic and Structural Properties of the High-Tc Superconductor Ho-Ba-Cu OxideJapanese Journal of Applied Physics, 1987
- -wave pairing near a spin-density-wave instabilityPhysical Review B, 1986
- Spin-fluctuation-mediated even-parity pairing in heavy-fermion superconductorsPhysical Review B, 1986
- Tunneling in heavy fermion systemsJournal of Magnetism and Magnetic Materials, 1985
- Attractive Interaction and Pairing in Fermion Systems with Strong On-Site RepulsionPhysical Review Letters, 1985