论文标题
探测带有Magnetotransport的去角质vi $ _3 $层中的磁性
Probing magnetism in exfoliated VI$_3$ layers with magnetotransport
论文作者
论文摘要
我们对VI $ _3 $多层进行了磁转运实验，以研究散装中的铁磁性和去角质层之间的关系。在现场效应的晶体管和隧道屏障上测得的磁导体表明，去角质多层的库里温度为$ t_c $ = 57 K，大于散装（$ t _ {\ rm c，bulk} $ = 50 K）。低于$ t \ $ 40 K，我们观察到隧道磁导体的异常演变，类似于在散装中观察到的现象学。比较针对施加的磁场测量的磁电导率证实了类比，使我们能够确定多层中易于轴的方向与批量相似，并表明不同层中不同方向的磁化点的平面成分。除了确定散装和多层的磁态相似之外，我们的实验还说明了磁转运和磁光测量的互补性，以探测2D材料中的磁性。
We perform magnetotransport experiments on VI$_3$ multilayers, to investigate the relation between ferromagnetism in bulk and in exfoliated layers. The magnetoconductance measured on field-effect transistors and tunnel barriers shows that the Curie temperature of exfoliated multilayers is $T_C$ = 57 K, larger than in bulk ($T_{\rm C,bulk}$ = 50 K). Below $T \approx$ 40 K, we observe an unusual evolution of the tunneling magnetoconductance, analogous to the phenomenology observed in bulk. Comparing the magnetoconductance measured for fields applied in- or out-of-plane corroborates the analogy, allows us to determine that the orientation of the easy-axis in multilayers is similar to that in bulk, and suggests that the in-plane component of the magnetization points in different directions in different layers. Besides establishing that the magnetic state of bulk and multilayers are similar, our experiments illustrate the complementarity of magnetotransport and magneto-optical measurements to probe magnetism in 2D materials.
