论文标题
LAALO3上的磁性kagome金属FESN的分子束外延（111）
Molecular beam epitaxy of the magnetic kagome metal FeSn on LaAlO3 (111)
论文作者
论文摘要
具有分层kagome晶格的材料有望引起具有拓扑特性，旋转液体行为和天空形成的带状结构引起的新型物理。到目前为止，由于薄膜合成困难，大多数关于kagome材料的工作都是在散装样品上进行的。在这里，通过使用分子束外延，分层的kagome结构化FESN膜在（111）面向的LAALO3底物上合成。原位表征和原位表征都表明这些薄膜是高度结晶和面向C轴的，具有原子光滑的表面。然而，这些薄膜随着断开的岛屿而生长，其横向尺寸在微米尺度上。通过使用聚焦电子束对PT电极进行构图，已经在磁场中测量了单岛的纵向和横向电阻。我们的工作开辟了一条途径，用于探索kagome材料和相关设备的薄膜中的中尺度运输特性。
Materials with a layered Kagome lattice are expected to give rise to novel physics arising from band structures with topological properties, spin liquid behavior and the formation of skyrmions. Until now, most work on Kagome materials has been performed on bulk samples due to difficulties in thin film synthesis. Here, by using molecular beam epitaxy, layered Kagome-structured FeSn films are synthesized on (111) oriented LaAlO3 substrate. Both in-situ and ex-situ characterizations indicate these films are highly crystalline and c-axis oriented, with atomically smooth surfaces. However, the films grow as disconnected islands, with lateral dimensions on the micron scale. By patterning Pt electrodes using a focused electron beam, longitudinal and transverse resistance of single islands have been measured in magnetic fields. Our work opens a pathway for exploring mesoscale transport properties in thin films of Kagome materials and related devices.
