Influence of a nonmagnetic impurity on the properties of the quasi-one-dimensional antiferromagnet CsNiCl3
Influence of a nonmagnetic impurity on the properties of the quasi-one-dimensional antiferromagnet CsNiCl3
复制标题
非磁性杂质对准一维反铁磁体CsNiCl3性能的影响
DOI：
10.1134/1.558322
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发表时间：
1997
影响因子：
1.1
通讯作者：
S. Petrov
中科院分区：
文献类型：
--
作者：
S. Sosin;I. Zaliznyak;L. A. Prozorova;Y. Tsipenyuk;S. Petrov
通过实验研究了稀释的准一维反铁磁体 CsNi1−xMgxCl3 在几种杂质浓度下的各种磁特性。发现反铁磁共振谱和相图很大程度上取决于镁的添加量。对于具有两种不同含量 x 的晶体，测量静态磁化强度的场和温度依赖性。在低温下观察到磁化强度的显着增加，其中额外的磁化率大约与浓度成正比。讨论了准一维反铁磁体中自旋链断裂处形成的磁性缺陷对其在有序态和 T<TN 下的磁性能产生强烈影响的物理机制。
Various magnetic properties of the diluted quasi-one-dimensional antiferromagnet CsNi1−xMgxCl3are investigated experimentally for several impurity concentrations. The antiferromagnetic resonance spectrum and the phase diagrams are found to depend significantly on the amount of added Mg. The field and temperature dependences of the static magnetization is measured for crystals with two different contentsx. A substantial increase in the magnetization is observed at low temperature, where the additional susceptibility is approximately proportional to the concentration. The physical mechanisms underlying the observed strong influence of magnetic defects formed at breaks in the spin chains in a quasi-one-dimensional antiferromagnet on its magnetic properties in the ordered state and forT<TNare discussed.