The Kagome-staircase lattice:: magnetic ordering in Ni3V2O8 and Co3V2O8

被引：117

作者：

Rogado, N

Lawes, G

Huse, DA

Ramirez, AP

Cava, RJ

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

[2] Princeton Univ, Princeton Mat Inst, Princeton, NJ 08544 USA

[3] Los Alamos Natl Lab, Los Alamos, NM 87544 USA

[4] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

来源：

SOLID STATE COMMUNICATIONS | 2002年 / 124卷 / 07期

基金：

美国国家科学基金会;

关键词：

Kagome nets; phase transitions;

D O I：

10.1016/S0038-1098(02)00597-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ni3V2O8 and Co3V2O8 have spin-1 and spin-3/2 magnetic lattices that are a new anisotropic variant of the Kagome net, wherein edge-sharing MO6 octahedra form the rises and rungs of a Kagome staircase'. The anisotropy largely relieves the geometric frustration. but results in rich magnetic behavior. Characterization of the magnetization of polycrystalline samples reveals that the compounds are ferrimagnetic in character. Heat capacity measurements show the presence of four magnetic phase transitions below 9 K for Ni3V2O8 and two below 11K for Co3V2O8. Comparison to the low temperature heat capacity of isostructural nonmagnetic Zn3V2O8 provides an estimate of the magnetic entropy involved with the hase transitions. The p results, suggest that Co3V2O8 may display magnetic transitions below 2 K. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：229 / 233

页数：5

共 17 条

[1] Spin ice state in frustrated magnetic pyrochlore materials [J].