论文标题
CRSNS3的磁性特性：一种新的范德华（Van der Waals Ferromagnet）
Magnetic properties of CrSnS3: A new Van der Waals ferromagnet
论文作者
论文摘要
我们报告了CRSNS3的实验发现，CRSNS3是一种新的van der waals铁磁（FM），具有居里温度TC〜119K。 Curie温度是Chittari等人的定性协议。 al。对于添加库仑电势的ISING模型的DFT预测（TC = 112.3K）。 CRSNS3中的FM排序温度是基于CR的范德华材料中最高的：CRI3，CRSITE3和CRGEGE3。 DC敏感性显示在TC（〜119K）时急剧增加，指示一阶转变。然后在AFM Neel温度TN〜90K处提高最大值。AC敏感性揭示了两个尖峰的存在。一个靠近TC（119k），另一个位于Tn〜90k。应用DC磁场中的AC敏感性测量值表明CRSNS3经历了两个连续的相变：易感性的急剧提高表明，在119K时，FM的一阶PM在TN〜90K处的AFM转换开始时逐渐减少。低于30K的磁化等温度表明材料处于AFM状态；而t> 30k的磁等温线急剧上升到其饱和值，从而证实了铁磁状态。
We report an experimental discovery of CrSnS3, a new Van der Waals ferromagnetic (FM) with Curie temperature TC ~119K. The Curie temperature is in qualitative agreement of Chittari et. al. DFT prediction (TC =112.3K) for an Ising model with the addition of Coulomb potential. The FM ordering temperature in CrSnS3 is the highest among Cr-based Van der Waals materials: CrI3, CrSiTe3 and CrGeTe3. The dc-susceptibility revealed a sharp increase at Tc (~119K) indicative of a first order transition; then raises to a wide maximum at AFM Neel temperature TN~90K.The ac-susceptibility reveals the presence of two sharp peaks; one close to Tc (119K) and the other at TN~90K. Ac-susceptibility measurements in an applied dc-magnetic field indicates that CrSnS3 undergoes two successive phase transitions: a sharp increase in the susceptibility indicates a first order PM to FM at 119K, followed by more gradual decrease at the onset of AFM transition at TN~90K. The magnetization isotherms below 30K indicates that the materials orders in an AFM state; while the magnetic isotherms at T >30K rises sharply to its saturated values confirming the ferromagnetic state.
