| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1518144 | Journal of Physics and Chemistry of Solids | 2008 | 4 Pages |
Abstract
We report Raman scattering spectra for single crystals of overdoped Tl2Ba2CuO6+δ (Tl-2201) at low temperatures. It was observed that the pair-breaking peaks in A1g and B1g spectra radically shift to lower energy with carrier doping. We interpret it as s-wave component mixing into d-wave, although the crystal structure is tetragonal. Since similar phenomena were observed also in YBa2Cu3Oy and Bi2Sr2CaCu2Oz, we conclude that s-wave mixing is a common property for overdoped high-Tc superconductors.
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Authors
K. Nishikawa, T. Masui, S. Tajima, H. Eisaki, H. Kito, A. Iyo,