| Автор | M Elgueta |
| Автор | C Esparza |
| Автор | J Rossler |
| Дата выпуска | 1994-06-06 |
| dc.description | The exact solution for the Peierls-Heisenberg antiferromagnetic (AF) model in a finite cluster is presented. The spin-spin coupling is retained up to second neighbours. The quantum mechanical character of the phonon variables is maintained in order to properly describe the fluctuations, which have a substantial role in one dimension. The problem of the frustrated AF state is briefly addressed. For the purpose of comparison, Born-Oppenheimer (BO) calculations are also provided. A noticeable result is the fact that the (semiclassical) BO approximation overestimates quantum fluctuations. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The non-adiabatic Peierls-Heisenberg model in finite clusters |
| Тип | paper |
| DOI | 10.1088/0953-8984/6/23/016 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 6 |
| Первая страница | 4361 |
| Последняя страница | 4374 |
| Аффилиация | M Elgueta; Escuela de Ingeniera Civil, Univ. Diego Portales, Santiago, Chile |
| Аффилиация | C Esparza; Escuela de Ingeniera Civil, Univ. Diego Portales, Santiago, Chile |
| Аффилиация | J Rossler; Escuela de Ingeniera Civil, Univ. Diego Portales, Santiago, Chile |
| Выпуск | 23 |
