论文标题

$ j_ {1} $ quintets的磁化步骤在HCP晶格中

Magnetization steps of $J_{1}$ quintets in the hcp lattice

论文作者

Gratens, X., Chitta, V.

论文摘要

已经研究了五重簇的磁化步骤,该量子簇由五个相同的磁离子组成,该磁离子由hCP晶格中的各向同性最近的邻居抗磁交换相互作用耦合。在该型号中,称为$ J_1 $型号,有17种五重奏类型。簇的磁化步骤的磁场值已通过自旋汉密尔顿的数值对角线化确定。这些模拟是针对由单个旋转$ s $ = 1/2、3/2和5/2组成的五重奏组进行的。还计算了五重奏对有效浓度(或技术饱和)随磁离子浓度的函数的贡献。

The magnetization steps of quintet clusters, consisting of five identical magnetic ions coupled by isotropic nearest neighbors antiferromagnetic exchange interaction in the hcp lattice, have been investigated. In that model, called the $J_1$ model, there are 17 types of quintets. The values of the magnetic field of the magnetization steps of the clusters have been determined by the numerical diagonalization of the spin Hamiltonian. The simulations have been performed for quintets composed of individual spin $S$ = 1/2, 3/2 and 5/2. The contribution of the quintets to the effective concentration (or technical saturation) as a function of the magnetic ion concentration was also calculated.

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