论文标题
磁化高原通过超高田的faraday旋转在KagoméantiferRomagnetHerbertsmithite中观察到
Magnetization Plateau Observed by Ultra-High Field Faraday Rotation in a Kagomé Antiferromagnet Herbertsmithite
论文作者
论文摘要
To capture the high-field magnetization process of herbertsmithite (ZnCu3(OH)6Cl2), Faraday rotation (FR) measurements were carried out on a single crystal in magnetic fields of up to 190 T. The magnetization data evaluated from the FR angle exhibited a saturation behavior above 150 T at low temperatures, which was attributed to the 1/3 magnetization plateau.磁化过程的总体行为是通过基于最近邻居海森贝格模型的理论模型复制的。这表明Herbertsmithite是一种近距离的kagome抗fiferromagnet，在基态下固定理想的量子自旋液体。一个区别的特征是超线性磁化的增加，这与传统的磁化测量值观察到的布里渊函数型的增加相反，表明位于Zn位点到FR信号的自由旋转的贡献降低。
To capture the high-field magnetization process of herbertsmithite (ZnCu3(OH)6Cl2), Faraday rotation (FR) measurements were carried out on a single crystal in magnetic fields of up to 190 T. The magnetization data evaluated from the FR angle exhibited a saturation behavior above 150 T at low temperatures, which was attributed to the 1/3 magnetization plateau. The overall behavior of the magnetization process was reproduced by theoretical models based on the nearest-neighbor Heisenberg model. This suggests that herbertsmithite is a proximate kagome antiferromagnet hosting an ideal quantum spin liquid in the ground state. A distinguishing feature is the superlinear magnetization increase, which is in contrast to the Brillouin function-type increase observed by conventional magnetization measurements and indicates a reduced contribution from free spins located at the Zn sites to the FR signal.
