论文标题
二十面体簇上的经典和量子磁接地态
Classical and Quantum Magnetic Ground States on an Icosahedral Cluster
论文作者
论文摘要
最近发现了Tsai型准晶体近似值的各种磁性，其合金上的合金稀土离子位于Icosahedral Apices上的稀有地点，通过Ruderman-Kiter-Kasuya-Kasuya-yosida互动，彼此相互耦合，打开了一个从iCosah symemshedraledraledredmermetrymermetry中找到新颖的磁性。在这里，我们研究了所有键的海森堡相互作用内的二十面体簇上的经典和量子磁态。进行模拟退火和数值对角，以获得经典和量子基态。我们获得经典和量子相图的定性对应关系。我们的研究提供了一个很好的起点，可以理解不仅准晶体近似值，而且还可以理解准晶体的各种磁性。
Recent discovery of various magnetism in Tsai-type quasicrystalline approximants, in whose alloys rare-earth ions located on icosahedral apices are coupled with each other via the Ruderman--Kittel--Kasuya--Yosida interaction, opens an avenue to find novel magnetism originating from the icosahedral symmetry. Here we investigate classical and quantum magnetic states on an icosahedral cluster within the Heisenberg interactions of all bonds. Simulated annealing and numerical diagonalization are performed to obtain the classical and quantum ground states. We obtain qualitative correspondence of classical and quantum phase diagrams. Our study gives a good starting point to understand the various magnetism in not only quasicrystalline approximants but also quasicrystals.
