| Автор | Guo-Zhu Wei |
| Автор | An Du |
| Дата выпуска | 1995-11-13 |
| dc.description | The disordered ground-state properties of a double-layer quantum antiferromagnet are investigated in the bond operator representation. The intralayer and interlayer couplings are J and J<sub>perpendicular to </sub>, respectively. In a mean-field approximation, we obtain a spin gap which decreases with increasing ratio lambda =J/J<sub>perpendicular to </sub> and disappears at the value lambda <sub>c</sub>=0.292. In the region 0<or= lambda <or= lambda <sub>c</sub>, we calculate the disordered ground-state energy, the intralayer and interlayer nearest-neighbour singlet strengths, and the correlation length. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Disordered ground-state properties of a double-layer Heisenberg antiferromagnet |
| Тип | paper |
| DOI | 10.1088/0953-8984/7/46/011 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 7 |
| Первая страница | 8813 |
| Последняя страница | 8819 |
| Аффилиация | Guo-Zhu Wei; Dept. of Phys., Northeastern Univ., Shenyang, China |
| Аффилиация | An Du; Dept. of Phys., Northeastern Univ., Shenyang, China |
| Выпуск | 46 |
