頁籤選單縮合
| 題 名 | Phase String Effect in Weakly Doped Antiferromagnet |
|---|---|
| 作 者 | Weng,Z. Y.; Sheng,D. N.; Ting,C. S.; | 書刊名 | Chinese Journal of Physics |
| 卷 期 | 36:2(Part2) 民87.04 |
| 頁 次 | 頁204-214 |
| 分類號 | 330 |
| 關鍵詞 | |
| 語 文 | 英文(English) |
| 英文摘要 | Spiral instabilities usually obscure theoretical attempt to get into metallic phase by doping. A recently revealed nonlocal phase string effect indicates such spiral effect to be artificial due to an illegitimate mean-field treatment. We present a self-consistent theory which incorporates the nonlocal phase string effect into a bosonic resonating-valence-bond (RVB) description and show a continuous evolution into a metallic phase, where magnetic anomalies in spin susceptibility and NMR are found consistent with experiment and superconducting condensation is always present at low-temperature. A unified phase diagram for the weakly doped t-J model is given, in which an underdoped metallic phase with charge inhomogeneity is also briefly discussed. |
本系統中英文摘要資訊取自各篇刊載內容。