| Автор | Oleg Derzhko |
| Дата выпуска | 2000-12-08 |
| dc.description | Using continued fractions we study the ground state properties of the spin-½ Ising chain in a transverse field with periodically varying interaction strengths and external fields. We consider in detail the chain having a period-2 modulation of the interaction strengths and compare the results obtained with those corresponding to the spin-½ isotropic XY chain in a transverse field. In contrast to the behaviour of the transverse XY chain, the transverse Ising chain does not exhibit a step-like magnetization versus field dependence caused by the alternation of bonds. Its susceptibility exhibits a logarithmic singularity at a field determined by interaction strengths, and it is stable with respect to spin-Peierls dimerization. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The ground state properties of the spin-½ transverse Ising chain with periodically varying bonds and fields |
| Тип | paper |
| DOI | 10.1088/0305-4470/33/48/303 |
| Print ISSN | 0305-4470 |
| Журнал | Journal of Physics A: Mathematical and General |
| Том | 33 |
| Первая страница | 8627 |
| Последняя страница | 8634 |
| Аффилиация | Oleg Derzhko; Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany |
| Выпуск | 48 |
