Borocarbide superconductors, which are thought to be conventional BCS-type superconductors, are not so conventional in several electronic Raman properties. Anisotropic gap-like features and finite scattering strength below the gap were observed for the RNi2B2C (R = Lu, Y) systems in our previous study. The effects of Co-doping on the 2Δ gap-like features and the finite scattering strength below and above the gap are studied in R = Lu (B = B11) system. In superconducting states, Co-doping strongly suppresses the 2Δ peak in both B2g and B1g symmetries. Raman cross-section calculation which includes inelastic scattering shows a relatively good fit to the features above the 2Δ peak, while it does not fully account for the features below the peak.
|Number of pages
|Physica C: Superconductivity and its Applications
|Published - Nov 2000
|International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA
Duration: 20 Feb 2000 → 25 Feb 2000
Bibliographical noteFunding Information:
ISY and MVK were partiallys upportedu nder NSF 9705131a nd 9120000. ISY was also supported by KOSEF 1999-2-114-005-A5m. es Lab-oratoryi s operatedb y U.S. DOE by Iowa State Universityu nderC ontractN o. W-7405-Eng-82.