Translational Symmetry Broken Magnetization Plateau of the $S=\frac{1}{2}$ Anisotropic Spin Ladder with Ferromagnetic Rung Interaction

Abstract

The magnetization process of the $S=1/2$ anisotropic spin ladder with the ferromagnetic rung interaction is investigated using the numerical diagonalization of finite-size clusters. It is found that the translational symmetry broken magnetization plateau would appear at half the saturation magnetization, when the competing anisotropies are sufficiently large. The phase diagram with respect to the anisotropies and several magnetization curves are presented.

Proceedings of ICM 2024, to be published in Journal of Physics: Conference Series