| Автор | G I Watson |
| Автор | R Lemanski |
| Дата выпуска | 1995-12-04 |
| dc.description | The spinless Falicov-Kimball model on a two-dimensional square lattice is studied using the method of restricted phase diagrams constructed in the grand canonical ensemble. The results are compared with the one-dimensional model. Although the two-dimensional phase diagrams are more complex, with several distinct families of ion configurations occurring as ground states, there are surprising similarities with the one-dimensional case. Within each family of configurations, the ground states form a devil`s staircase structure and the configurations are constructed according to a composition rule identical to that in one dimension. It is also found that, as in one dimension, segregation occurs in the non-neutral model for large ion-electron interaction strength. Some features of the phase diagrams are understood by examining the effective two-body ion interaction. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The ground-state phase diagram of the two-dimensional Falicov-Kimball model |
| Тип | paper |
| DOI | 10.1088/0953-8984/7/49/016 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 7 |
| Первая страница | 9521 |
| Последняя страница | 9542 |
| Аффилиация | G I Watson; Rutherford Appleton Lab., Chilton, UK |
| Аффилиация | R Lemanski; Rutherford Appleton Lab., Chilton, UK |
| Выпуск | 49 |
