论文标题

观察裸露CRI3铁磁磁性中的内在晶相

Observation of intrinsic crystal phase in bare CrI3 ferromagnetism

论文作者

Liu, Zhen, Guo, Yongzheng, Chen, Zhiyong, Gong, Tao, Li, Yue, Niu, Yuting, Cheng, Yingchun, Lu, Haipeng, Deng, Longjiang, Peng, Bo

论文摘要

固有的结构阶段是基本物理特性的关键基础,也是创建具有前所未有的性能和独特功能的创新设备。 Van der Waals CRI3的远程铁磁顺序与层间堆叠顺序紧密绑定。但是,几层CRI3的内在结构仍然难以捉摸。在裸露的几层CRI3中尚未实验检测到的预测单斜相。在这里,我们发现了与层间抗铁磁耦合的几层CRI3的固有结构,在裸露和HBN已封闭的双层和三层式cri3中,在整个温度范围内,在裸露和HBN已封装的双层和三层式双层CRI3中都明确显示单斜均匀的堆叠范围。 HBN/CRI3/HBN异质结构,部分阻碍了CRI3的层间滑动。这项工作证明了几层CRI3的固有单斜晶晶相以及与磁性订单相关的相关性,从而为通过堆叠设计提供了许多创造磁纹理的机会。

Intrinsic structural phase is a crucial foundation for the fundamental physical properties, and for creating innovative devices with unprecedented performances and unique functionalities. Long-range ferromagnetic orders of van der Waals CrI3 are strongly tied with interlayer stacking orders. However, the intrinsic structure of few-layer CrI3 still remains elusive; the predicted monoclinic phase has not yet been experimentally detected in bare few-layer CrI3. Here we uncover the intrinsic structure of few-layer CrI3 with interlayer antiferromagnetic coupling, which unambiguously show monoclinic stacking in both bare and hBN-encapsulated bilayer and tri-five-layer CrI3 throughout an entire temperature range from 300 to 10 K. An exotic spring damping effect from hBN encapsulation layers is experimentally observed in hBN/CrI3/hBN heterostructures, which partly hinders interlayer sliding of CrI3. This work demonstrates the intrinsic monoclinic crystal phase of few-layer CrI3 and associated correlation with magnetic orders, opening up numerous opportunities for creating magnetic texture by stacking design.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源