μSR study of hexagonal ABX3
μSR study of hexagonal ABX3
复制标题
六方ABX3的μSR研究
DOI：
10.1016/0304-8853(92)90378-2
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
K. Nagamine
中科院分区：
文献类型：
--
作者：
M. Mekata;S. Onoe;H. Kuriyama;B. Sternlieb;Y. Uemura;K. Nagamine
为了阐明准一维反铁磁体六方ABX 3化合物中的磁有序化过程，对典型Ising自旋体系CsCoCl 3进行了μ+SR实验.在TN ~ 2 = 9 K以下，观测到进动分量，进动频率外推到0 K时的4.2MHz。在低于TN 1 = 21 K的部分无序相中，由于静态磁偶极场的作用，μ子极化的弛豫分量叠加在旋进谱上，表明尽管存在长程有序，但仍存在显著的自旋涨落.在顺磁相中，只观察到弛豫分量。结果被解释为畴壁孤子的传播沿着磁链。丢失的信号及其温度依赖性是未来的问题。
To elucidate the magnetic ordering process in quasi one-dimensional antiferromagnets, hexagonal ABX3compounds which have spin frustration among the magnetic chains on the triangular lattice, μ+SR experiments were performed on a typical Ising spin system CsCoCl3. BelowTN2= 9 K, precession component was observed with the precession frequency extrapolated to 4.2 MHz at 0 K. In the partially disordered phase belowTN1= 21 K, a relaxation component of muon polarization is superimposed on the precession spectra due to static magnetic dipolar field indicating remarkable spin fluctuations despite of long range ordering. In the paramagnetic phase, only the relaxation component was observed. The results are interpreted in terms of domain wall solitons which propagate along the magnetic chains. The missing signal and its temperature dependence are future problems.