论文标题
扭曲的钻石自旋链的磁化高原与各向异性铁磁相互作用
Magnetization Plateau of the Distorted Diamond Spin Chain with Anisotropic Ferromagnetic Interaction
论文作者
论文摘要
$ s = 1/2 $使用数值对角线化和水平光谱分析研究了各向异性铁磁相互作用的扭曲钻石自旋链。众所周知，该系统在饱和度的1/3处表现出磁化曲线的平原。本研究表明，随着各向异性的变化，量子相转变发生在1/3磁化高原的两种不同机制之间。还介绍了相对于各向异性和铁磁耦合的相图。
The $S=1/2$ distorted diamond spin chain with the anisotropic ferromagnetic interaction is investigated using the numerical diagonalization and the level spectroscopy analysis. It is known that the system exhibits a plateau of the magnetization curve at the 1/3 of the saturation. The present study indicates that as the anisotropy is varied the quantum phase transition occurs between two different mechanisms of the 1/3 magnetization plateau. The phase diagram with respect to the anisotropy and the ferromagnetic coupling is also presented.
