Ontology highlight
ABSTRACT:
SUBMITTER: Kim HH
PROVIDER: S-EPMC6561243 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20190520 23
We conduct a comprehensive study of three different magnetic semiconductors, CrI<sub>3</sub>, CrBr<sub>3</sub>, and CrCl<sub>3</sub>, by incorporating both few-layer and bilayer samples in van der Waals tunnel junctions. We find that the interlayer magnetic ordering, exchange gap, magnetic anisotropy, and magnon excitations evolve systematically with changing halogen atom. By fitting to a spin wave theory that accounts for nearest-neighbor exchange interactions, we are able to further determine ...[more]