English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 6507/11669
造訪人次 : 29951117      線上人數 : 579
RC Version 3.2 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 進階搜尋

請使用永久網址來引用或連結此文件: http://ir.ncue.edu.tw/ir/handle/987654321/16572

題名: Supersymmetric Mean-field Theory of the t-J Model
作者: Cheng, Chi-Ho;Ng, Tai-Kai
貢獻者: 物理學系
日期: 2000-10
上傳時間: 2013-05-28T07:11:37Z
出版者: EDP Sciences
摘要: The supersymmetric formulation of the t-J model is studied in this paper at the mean-field level where the δ-T phase diagram is determined. We found that the slave-fermion–like spiral phase is stable at low dopingconcen tration, and the slave-boson–like d-wave fermionic spin pairingstate becomes energetically favourable when δ ≥ 0.23. An improvement in free energy usingGutzwiller’s method lowers the transition dopingconcen tration to δ 0.06. We also point out the existence of new branches of excitations in the supersymmetric theory.
關聯: Europhysis Letters, 52(1): 87-93
顯示於類別:[物理學系] 期刊論文

文件中的檔案:

檔案 大小格式瀏覽次數
index.html0KbHTML613檢視/開啟


在NCUEIR中所有的資料項目都受到原著作權保護.

 

DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回饋