關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Exact magnetic phase diagram of the one-dimensional Hubbard model

[第一頁][上頁]1[次頁][最末頁]目前在第 1 頁 / 共有 01 筆查詢結果
序號 學年期 教師動態
1 88/2 物理系 楊 棨 教授 期刊論文 發佈 Exact magnetic phase diagram of the one-dimensional Hubbard model , [88-2] :Exact magnetic phase diagram of the one-dimensional Hubbard model期刊論文Exact magnetic phase diagram of the one-dimensional Hubbard model楊棨; Yang, Chi; Kocharian, A. N.; Chiang, Y. L.淡江大學物理學系Hubbard model;Superconductivity;Magnetic transitions;Phase diagramsElsevierPhysica B: Condensed Matter 281-282, pp.831-833The 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.tku_id: 000089530
[第一頁][上頁]1[次頁][最末頁]目前在第 1 頁 / 共有 01 筆查詢結果