The effect of gallium substitution for iron on the magnetic properties of hydronium iron jarosite

被引：28

作者：

Earle, SA ^{[1
]}

Ramirez, AP

Cava, RJ

机构：

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

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

[3] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

PHYSICA B | 1999年 / 262卷 / 1-2期

关键词：

magnetic susceptibility; Ga; H3O center dot Fe-3(SO4)(2)(OH)(6);

D O I：

10.1016/S0921-4526(98)00165-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Gallium has been partially substituted for iron in the hydronium iron jarosite H3O . Fe-3(SO4)(2)(OH)(6), a material with a Kagome lattice of iron-oxygen octahedra, allowing the controlled introduction of non-magnetic defects in the magnetic lattice. The highly frustrated nature of the magnetic interactions is partially relaxed by the substitution, which unlocks spins and thus increases the magnetic susceptibility. The non-linear susceptibility is reported. Comparison of intentionally doped and "pure" jarosite prepared under different synthetic conditions indicates that the defect concentration and the magnetic properties are variable dependent on the synthetic method. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：199 / 204

页数：6

共 21 条

[1] SUSCEPTIBILITIES OF SPIN-GLASSES [J].