Anisotropic spin correlations in the Zn-Mg-Ho icosahedral quasicrystal
Anisotropic spin correlations in the Zn-Mg-Ho icosahedral quasicrystal
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DOI：
10.1103/physrevlett.81.2364
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发表时间：
1998-09-14
影响因子：
8.6
通讯作者：
Shibata, K
中科院分区：
文献类型：
--
作者：
Sato, TJ;Takakura, H;Shibata, K
使用粉末和单晶样品对 Zn-Mg-Ho 二十面体准晶进行了中子散射实验。与之前的信件相比 [Charrier ct al., Phys.莱特牧师。 78, 4637 (1997)]，在二十面体准晶中无法检测到磁性长程有序。相反，它表现出高度各向异性的漫散射，表现为强烈的核布拉格反射的卫星脊，平行于五重轴。结果表明，准五维自旋相关性在六维超立方晶格上发展。
Neutron scattering experiments have been performed on the Zn-Mg-Ho icosahedral quasicrystal using powder and single-crystalline samples. In contrast to a previous Letter [Charrier ct al., Phys. Rev. Lett. 78, 4637 (1997)], the magnetic long-range order could not be detected in the icosahedral quasicrystal. It instead exhibits highly anisotropic diffuse scattering, which appears as satellite ridges of intense nuclear Bragg reflections, running parallel to the fivefold axis. The result suggests that quasi-five-dimensional spin correlations develop on a six-dimensional hypercubic lattice.