Two-dimensional ferromagnetic van der Waals CrCl3 monolayer with enhanced anisotropy and Curie temperature
Journal Article
·
· Physical Review B
- Fudan Univ., Shanghai (China); OSTI
- Univ. of California, Irvine, CA (United States)
- Fudan Univ., Shanghai (China)
Among the recently widely studied van der Waals layered magnets CrX3 (X = Cl, Br, I), CrCl3 monolayer (ML) is particularly puzzling: it is shown by experiments to have only an in-plane magnetic easy axis and, furthermore, all previous first-principles calculation results contradict this. Through systematic first-principles calculations, we unveil that the in-plane shape anisotropy that dominates over the weak perpendicular magnetocrystalline anisotropy is responsible for the in-plane magnetic easy axis of CrCl3 ML. Further, to tune the in-plane ferromagnetism of CrCl3 ML into the desirable perpendicular one, we propose substituting Cr with isovalent tungsten (W). We find that CrWCl6 has a strong perpendicular magnetic anisotropy and a high Curie temperature up to 76 K. Our work not only gives insight into understanding the two-dimensional ferromagnetism of van der Waals MLs but also sheds new light on engineering their performances for nanodevices.
- Research Organization:
- Univ. of California, Irvine, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-05ER46237
- OSTI ID:
- 1800328
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 22 Vol. 100; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Atomically Thin CrCl3: An In-Plane Layered Antiferromagnetic Insulator
Manipulation of Magnetic Skyrmion in a 2D van der Waals Heterostructure via Both Electric and Magnetic Fields
Journal Article
·
Mon May 13 20:00:00 EDT 2019
· Nano Letters
·
OSTI ID:1561640
Manipulation of Magnetic Skyrmion in a 2D van der Waals Heterostructure via Both Electric and Magnetic Fields
Journal Article
·
Sun Aug 15 20:00:00 EDT 2021
· Advanced Functional Materials
·
OSTI ID:1976166