Magnetic phase diagram of the Hubbard model with next-nearest neighbor hopping

被引：0

作者：

Peters, R. ^{[1
]}

Pruschke, Th. ^{[1
]}

机构：

[1] Univ Gottingen, Inst Theoret Phys, D-3400 Gottingen, Germany

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 19期

关键词：

Hubbard model; Bethe lattice; DMFT; Frustration; Magnetic order; METAL-INSULATOR TRANSITIONS; MEAN-FIELD THEORY; RENORMALIZATION-GROUP; SYSTEMS;

D O I：

10.1016/j.physb.2009.07.083

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the interplay between antiferromagnetism and the paramagnetic metal-insulator-transition (PMIT) on a Bethe lattice with nearest and next-nearest neighbor hopping. For t(2)/t(1) -> 1 the PMIT outgrows the antiferromagnetic phase and shows a scenario similar to V(2)O(3). We also look at other ordered phases for the doped system, where we find a ferromagnetic phase. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3249 / 3252

页数：4

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