Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2109.08808 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911912822833152 |
|---|---|
| author | Li, Fei Ren, Yulu Wan, Wenhui Liu, Yong Ge, Yanfeng |
| author_facet | Li, Fei Ren, Yulu Wan, Wenhui Liu, Yong Ge, Yanfeng |
| contents | Two-dimensional (2D) intrinsic magnetic materials with high Curie temperature (Tc) coexisting with 100% spin-polarization are highly desirable for realizing promising spintronic devices. In the present work, the intrinsic magnetism of monolayer square CrBr2 is predicted by using first-principles calculations. The monolayer CrBr2 is an intrinsic ferromagnetic (FM) half-metal with the half-metallic gap of 1.58 eV. Monte Carlo simulations based on the Heisenberg model estimates Tc as 212 K. Furthermore, the large compressive strain makes CrBr2 undergo ferromagnetic-antiferromagnetic phase transition, when the biaxial tensile strain larger than 9.3% leads to the emergence of semiconducting electronic structures. Our results show that the intrinsic half-metal with a high Tc and controllable magnetic properties endow monolayer square CrBr2 a potential material for spintronic applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2109_08808 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Strain Tunable Intrinsic Ferromagnetic in 2D Square CrBr$_2$ Li, Fei Ren, Yulu Wan, Wenhui Liu, Yong Ge, Yanfeng Materials Science Two-dimensional (2D) intrinsic magnetic materials with high Curie temperature (Tc) coexisting with 100% spin-polarization are highly desirable for realizing promising spintronic devices. In the present work, the intrinsic magnetism of monolayer square CrBr2 is predicted by using first-principles calculations. The monolayer CrBr2 is an intrinsic ferromagnetic (FM) half-metal with the half-metallic gap of 1.58 eV. Monte Carlo simulations based on the Heisenberg model estimates Tc as 212 K. Furthermore, the large compressive strain makes CrBr2 undergo ferromagnetic-antiferromagnetic phase transition, when the biaxial tensile strain larger than 9.3% leads to the emergence of semiconducting electronic structures. Our results show that the intrinsic half-metal with a high Tc and controllable magnetic properties endow monolayer square CrBr2 a potential material for spintronic applications. |
| title | Strain Tunable Intrinsic Ferromagnetic in 2D Square CrBr$_2$ |
| topic | Materials Science |
| url | https://arxiv.org/abs/2109.08808 |