Steplike magnetization in a spin-chain system:: Ca3Co2O6 -: art. no. 027212

被引：123

作者：

Kudasov, YB ^{[1
]}

机构：

[1] Inst Phys & Chim Mat Strasbourg, F-67034 Strasbourg, France

[2] VNIIEF, Russian Fed Nuc Ctr, Sarov 607188, Russia

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.96.027212

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Because of a ferromagnetic in-chain coupling between Co3+ ions at trigonal sites, Co2O6 chains are considered as large rigid spin moments. The antiferromagnetic Ising model on the triangular lattice is applied to describe an interchain ordering. An evolution of metastable states in a sweeping magnetic field is investigated by the single-flip technique. At the first approximation two steps in the magnetization curve and a plateau at 1/3 of the saturation magnetization are found. Four steps in magnetization are determined in high-order approximations in agreement with experimental results.

引用

页数：4

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