期刊論文

標題 Exact magnetic phase diagram of the one-dimensional Hubbard model
學年 88
學期 2
出版(發表)日期 2000/06/01
作品名稱 Exact magnetic phase diagram of the one-dimensional Hubbard model
作品名稱(其他語言)
著者 楊棨; Yang, Chi; Kocharian, A. N.; Chiang, Y. L.
單位 淡江大學物理學系
出版者 Elsevier
著錄名稱、卷期、頁數 Physica B: Condensed Matter 281-282, pp.831-833
摘要 The exact solution of the one-dimensional Hubbard model, both attractive and repulsive, is investigated numerically over a wide range of interaction strength U/t (−∞<U/t<∞), electron concentration n (0⩽n⩽1) and magnetic field h. The magnetic phase diagram and the ground-state properties, including the total energy, the average spin (magnetization) and the spin (magnetic) susceptibility are studied under the variation of U/t, h/t and n. The critical behavior near the onset of magnetization and magnetic saturation is analyzed. Our results are in full agreement with the analytical expansions in strong and weak interaction limits and previous numerical studies for h=0.
關鍵字 Hubbard model;Superconductivity;Magnetic transitions;Phase diagrams
語言 英文
ISSN 0921-4526
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度
國別 中華民國
公開徵稿
出版型式 ,電子版