Spin dynamics and magnetic ordering in the quasi-one-dimensional S= 1/2 antiferromagnet Na2CuSO4Cl2
Spin dynamics and magnetic ordering in the quasi-one-dimensional S= 1/2 antiferromagnet Na2CuSO4Cl2
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准一维 S= 1/2 反铁磁体 Na2CuSO4Cl2 中的自旋动力学和磁排序
DOI：
10.1103/physrevb.101.024410
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发表时间：
2020
影响因子：
3.7
通讯作者：
M. Tadokoro
中科院分区：
文献类型：
--
作者：
M. Fujihala;S. Mitsuda;R. A. Mole;D. H. Yu; I. Watanabe;S. Yano;T. Kuwai;H. Sagayam a;T. Kouchi;H. Kamebuchi;M. Tadokoro
准一维反铁磁体（Br）表现出特殊的Dzyaloshinskiii-Moriya（DM）相互作用，这种相互作用沿自旋链是沿着均匀的，与相邻的自旋链是反平行的。这一特性引起了人们的广泛关注，但有关自旋动力学和磁结构的研究还未见报道。在这里，我们报告的磁性行为。验证了的正交晶系晶体结构，其与相同。热力学测量的结果表明，该化合物具有中等强度的链内和链间相互作用的研究自旋状态周围。非弹性中子散射和μ子自旋弛豫和旋转测量揭示了一个两个自旋连续的存在下，长程有序的发展。然而，得到的临界指数是，这并不表示一个三维磁系统;相反，一维（1D）自旋相关可能会影响磁有序的形成。在一维量子自旋体系中，DM诱导的阻挫效应有可能成为一种模型化合物。
Thequasi-one-dimensional antiferromagnet, Br) exhibits peculiar Dzyaloshinskii-Moriya (DM) interactions that are uniform along its spin chains and antiparallel with respect to neighboring chains. This feature has received much attention recently because it leads to spin frustration, however, the spin dynamics aroundand magnetic structure have not been reported. Here we report magnetic behaviors of. The orthorhombic crystal structure of, which is identical to, was verified. The results of the thermodynamic measurements suggest that this compound has moderately strong intra- and interchain interaction for investigation of the spin state around. The inelastic neutron scattering and muon spin relaxation and rotation measurements reveal the presence of a two-spinon continuum, and below, the long-range order develops. However, the obtained critical exponent is, which is not indicative of a three-dimensional magnetic system; instead, one-dimensional (1D) spin correlation likely affects the formation of magnetic ordering in. There is a possibility thatis a model compound for investigation of DM-induced frustration effects in a 1D quantum spin system.