摘要
Study of two-dimensional(2D)magnetic materials is important for both fundamental research and application.Here we report molecular beam epitaxy growth of iodides,candidates for exhibiting 2D magnetism.Decomposition of CrI_(3)is utilized to produce stable gaseous I_(2)flux.Growth of MnI_(2),GdI_(3),and CrI_(2)down to monolayer is successful achieved by co-depositing I2 and corresponding metal atoms.The thin films of the three materials are characterized by scanning tunneling microscope and found to be insulators with bandgaps of 4.4 e V,0.6 e V,and 3.0 e V,respectively.The film growth paves the way for further study of magnetic properties at the 2 D limit.
作者
Xinqiang Cai
Zhilin Xu
Shuai-Hua Ji
Na Li
Xi Chen
蔡新强;徐智临;季帅华;李娜;陈曦(State Key Laboratory of Low Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing 100084,China;Key Laboratory for the Physics and Chemistry of Nanodevices,Department of Electronics,Peking University,Beijing 100871,China)
基金
Project supported by the Science Challenge Project(Grant No.TZ2016004)。
作者简介
Corresponding author:李娜,E-mail:na-li07@pku.edu.cn。
