TY - JOUR
T1 - Unconventional electronic Raman spectra of borocarbide superconductors
AU - Yang, In Sang
AU - Klein, M. V.
AU - Devereaux, T. P.
AU - Fisher, I. R.
AU - Canfield, P. C.
N1 - Funding 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.
PY - 2000/11
Y1 - 2000/11
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0343833193&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(00)01106-0
DO - 10.1016/S0921-4534(00)01106-0
M3 - Conference article
AN - SCOPUS:0343833193
SN - 0921-4534
VL - 341-348 (IV)
SP - 2259
EP - 2260
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
Y2 - 20 February 2000 through 25 February 2000
ER -