Raman study of carrier-overdoping effects on the gap in high-Tc superconducting cuprates

T. Masui, M. Limonov, H. Uchiyama +3

Raman scattering in the heavily overdoped (Y,Ca)Ba_2Cu_3O_{7-d} (T_c = 65 K) and Bi_2Sr_2CaCu_2O_{8+d} (T_c = 55 K) crystals has been investigated. For the both crystals, the elect…