| タイトル | Phase separation in the t-J model |
| 著者（英） | Lin, H. Q.; Emery, V. J.; Kivelson, S. A. |
| 著者所属（英） | Brookhaven National Lab.|California Univ. |
| 発行日 | 1990-01-22 |
| 言語 | eng |
| 内容記述 | A detailed understanding of the motion of 'holes' in an antiferromagnet is of fundamental importance for the theory of high-temperature superconductors. It is shown here that, for the t-J model, dilute holes in an antiferromagnet are unstable against phase separation into a hole-rich and a no-hole phase. When the spin-exchange interaction J exceeds a critical value Jc, the hole-rich phase has no electrons. It is proposed that, for J slightly less than Jc, the hole-rich phase is a low-density superfluid of electron pairs. Phase separation in related models is briefly discussed. |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 90A22368 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/358422 |
|
