| Автор | Ye, Xiao-Shan |
| Автор | Yao, Zi-Jian |
| Автор | Li, Jian-Xin |
| Дата выпуска | 2008-01-30 |
| dc.description | We investigate the symmetry of the superconducting gap induced by dominant small-q phonon scattering in a triangular lattice. Using the energy band appropriate for Na<sub>x</sub>CoO<sub>2</sub>·yH<sub>2</sub>O and solving the BCS-like gap equation within the weak coupling theory self-consistently, we find that an f-wave pairing state is favored in this system. It is a consequence of the combined effects of the momentum decoupling due to the small-q phonon scattering, the anisotropy of the local density of states (DOS) in the momentum space and the sufficient effective Coulomb repulsion. We propose that this scenario may provide a new picture for the superconductivity in Na<sub>x</sub>CoO<sub>2</sub>·yH<sub>2</sub>O compounds. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | IOP Publishing Ltd |
| Название | Phonon-mediated unconventional superconductivity in Na<sub>x</sub>CoO<sub>2</sub>·yH<sub>2</sub>O compounds |
| Тип | paper |
| DOI | 10.1088/0953-8984/20/04/045227 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 20 |
| Первая страница | 45227 |
| Последняя страница | 45230 |
| Аффилиация | Ye, Xiao-Shan; National Laboratory of Solid State of Microstructure and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China |
| Аффилиация | Yao, Zi-Jian; National Laboratory of Solid State of Microstructure and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China |
| Аффилиация | Li, Jian-Xin; National Laboratory of Solid State of Microstructure and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China |
| Выпуск | 4 |
