论文标题
使用粘合剂增强网格的Crbr $ _ {3} $的原子分辨率成像
Atomic Resolution Imaging of CrBr$_{3}$ using Adhesion-Enhanced Grids
论文作者
论文摘要
一系列研究需要悬浮的2D晶体及其异质结构，包括透射电子显微镜（TEM），光学传输实验和纳米力学测试。然而，通过制造必要的干净悬浮样品的困难，研究了侧面小2D晶体标本的性能，包括扭曲的双层和空气敏感材料。在这里，我们提出了一种可扩展的解决方案，该解决方案允许通过干燥的原子稀薄的2D堆叠在特殊开发的粘附增强的支撑网格上，以100％的产量实现清洁的独立样品。使用这种新功能，我们证明了原子薄CRBR3中缺陷结构的原子分辨率成像，这是一种在环境条件下降低的新型磁性材料。
Suspended specimens of 2D crystals and their heterostructures are required for a range of studies including transmission electron microscopy (TEM), optical transmission experiments and nanomechanical testing. However, investigating the properties of laterally small 2D crystal specimens, including twisted bilayers and air sensitive materials, has been held back by the difficulty of fabricating the necessary clean suspended samples. Here we present a scalable solution which allows clean free-standing specimens to be realized with 100% yield by dry-stamping atomically thin 2D stacks onto a specially developed adhesion-enhanced support grid. Using this new capability, we demonstrate atomic resolution imaging of defect structures in atomically thin CrBr3, a novel magnetic material which degrades in ambient conditions.
