Magnetic transitions in the topological magnon insulator Cu(1,3-bdc)
Magnetic transitions in the topological magnon insulator Cu(1,3-bdc)
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DOI：
10.1103/physrevb.93.214403
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发表时间：
2016-06-02
影响因子：
3.7
通讯作者：
Lee, Y. S.
中科院分区：
文献类型：
--
作者：
Chisnell, R.;Helton, J. S.;Lee, Y. S.
拓扑型磁振子绝缘体是一类具有拓扑非平凡磁振子带的新型磁性材料。因此，这些材料中的磁子表现出类似于拓扑绝缘体中的电子的性质。本文介绍了铁磁性Kagome磁体Cu(1，3-BDC)的磁化强度、比热和中子散射的测量结果。我们的测量提供了这种材料中的磁结构和相互作用的详细描述，并证实了它是具有简单自旋哈密顿量的系统中的拓扑磁振子物理的理想原型。
Topological magnon insulators are a new class of magnetic materials that possess topologically nontrivial magnon bands. As a result, magnons in these materials display properties analogous to those of electrons in topological insulators. Here we present magnetization, specific heat, and neutron scattering measurements of the ferromagnetic kagome magnet Cu(1,3-bdc). Our measurements provide a detailed description of the magnetic structure and interactions in this material and confirm that it is an ideal prototype for topological magnon physics in a system with a simple spin Hamiltonian.