GdN thin film: Chern insulating state on square lattice

• Main Authors: Li, Zhi, Kim, Jinwoong, Kioussis, Nicholas, Ning, Shu-Yu, Su, Haibin, Iitaka, Toshiaki, Tohyama, Takami, Yang, Xinyu, Zhang, Jiu-Xing
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: Materials Science and Engineering
• Online Access: https://hdl.handle.net/10356/81734; http://hdl.handle.net/10220/39647
• Institution: Nanyang Technological University

Using first-principles calculations, we predict a Chern insulating phase in thin films of the ferromagnetic semimetal GdN. In contrast to previously proposed Chern insulator candidates, which mostly rely on honeycomb lattices, this system affords a great chance to realize the quantum anomalous Hall...