Magnetic phase diagram of the S=1/2 antiferromagnetic zigzag spin chain in the strongly frustrated region:: Cusp and plateau

被引：85

作者：

Okunishi, K

Tonegawa, T

机构：

[1] Niigata Univ, Fac Sci, Dept Phys, Niigata 9502181, Japan

[2] Fukui Univ Technol, Dept Engn Mech, Fukui 9108505, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 03期

关键词：

frustration; cusp; 1/3; plateau; even-odd effect; NEAREST-NEIGHBOR INTERACTIONS; HIGH-FIELD MAGNETIZATION; COMPETING INTERACTIONS; HEISENBERG-ANTIFERROMAGNET; GROUND-STATE; DIMERIZATION; LATTICE; MODEL;

D O I：

10.1143/JPSJ.72.479

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the magnetic phase diagram of the S = 1/2 antiferromagnetic zigzag spin chain in the strongly frustrated region, using the density matrix renornialization group method. We find the magnetization plateau at 1/3 of the full moment accompanying the spontaneous symmetry breaking of the translation. the cusp singularities above and/or below the plateau, and the even-odd effect in the magnetization curve. We also discuss the formation mechanisms of the plateau and cusps briefly.

引用

页码：479 / 482

页数：4

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