论文标题
Kitaev Magnet $β$ - $ \ text {li} _2 \ text {iro} _3 $中的重新输入不相关的顺序和异常磁性扭矩
Reentrant incommensurate order and anomalous magnetic torque in the Kitaev magnet $β$-$\text{Li}_2\text{IrO}_3$
论文作者
论文摘要
我们介绍了一项理论研究，对$β$ - $ \ text {li} _2 \ text {iro} _3 $在$ ab $，$ ab $，$ bc $和$ ac Crystallographic Planes的响应中的响应。结果基于最小的最近的邻居$ J $ -K $ - $γ$模型，并揭示了与野外诱导的相位和磁相变的丰富交织在一起，并具有独特的特征，可以直接通过扭矩磁力测定法直接探测。最明显的是，我们观察到：i）不寻常的重新进入$ ab $ - 平面中的田野的反旋转顺序，ii）ii）一组突然的扭矩不连续性，对于在$ bc $ plane中旋转的田地特别大，其特征形状与3d kitaev kitaev kitaeev magnet的特征相似的磁场尤其很大$γ$ - $ \ text {li} _2 \ text {iro} _3 $。对这些预测的实验确认将为准确确定该3D Kitaev磁铁的所有相关显微镜参数铺平道路。
We present a theoretical study of the response of $β$-$\text{Li}_2\text{IrO}_3$ under external magnetic fields in the $ab$, $bc$ and $ac$ crystallographic planes. The results are based on the minimal nearest-neighbor $J$-$K$-$Γ$ model and reveal a rich intertwining of field-induced phases and magnetic phase transitions with distinctive signatures that can be probed directly via torque magnetometry. Most saliently, we observe: i) an unusual reentrance of the incommensurate counter-rotating order for fields in the $ab$-plane, and ii) a set of abrupt torque discontinuities which are particularly large for fields rotating in the $bc$ plane, and whose characteristic shape resembles closely the ones observed in the 3D Kitaev magnet $γ$-$\text{Li}_2\text{IrO}_3$. An experimental confirmation of these predictions will pave the way for an accurate determination of all relevant microscopic parameters of this 3D Kitaev magnet.
