| Автор | E V L de Mello |
| Дата выпуска | 1994-01-03 |
| dc.description | The t-J model has been proposed to describe the physics of copper oxide planes in high-temperature superconductors. A real-space quantum renormalization-group method is developed in order to study the t-J Hamiltonian in a square lattice. The zero-temperature phase diagram is analysed for electron concentrations near the half-filled band and ratio J/t. A critical line is found that separates two distinct regions: one of a gas of holes in an antiferromagnetic background, and the other consisting of a phase in which holes segregate into a hole-rich and a pure antiferromagnetic region, as demonstrated by chemical-potential eigenvalue calculations near the phase attractor. The results are close to the experimental observations. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | A renormalization-group study of the t-J model |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/1/013 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 117 |
| Последняя страница | 126 |
| Аффилиация | E V L de Mello; Dept. de Fisica, Univ. Federal Fluminense, Rio de Janeiro, Brazil |
| Выпуск | 1 |
