$S=1$各向异性自旋阶梯中的场致自旋向列相

2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS) Pub Date : 2018-09-01 DOI:10.1109/MEGAGAUSS.2018.8722674

Ryo Yamanokuchi, K. Okamoto, T. Sakai

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引用次数: 0

摘要

采用数值对角化和有限尺度分析的方法研究了具有易轴单离子各向异性的$S=1$自旋阶梯。发现在临界场以上出现场致向列Tomonaga-Luttinger液相。此外，还存在另一个临界场，在该临界场下，量子相位从向列Tomonaga-Luttinger液相转变为常规场致Tomonaga-Luttinger液相。并给出了相图。

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Field-Induced Spin Nematic Phase in the $S=1$ Anisotropic Spin Ladder

The $S=1$ spin ladder with the easy-axis single-ion anisotropy is investigated using the numerical diagonalization and the finite-size scaling analysis. It is found that the field-induced nematic Tomonaga-Luttinger liquid phase appears above the critical field. In addition, there exists another critical field at which the quantum phase transition from the nematic Tomonaga-Luttinger liquid phase to the conventional field-induced Tomonaga- Luttinger liquid phase occurs. Besides some phase diagrams are presented.

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2018 16th International Conference on Megagauss Magnetic Field Generation and Related Topics (MEGAGAUSS)

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