Above-room-temperature strong intrinsic ferromagnetism in 2D van der Waals Fe3GaTe2 with large perpendicular magnetic anisotropy
Huazhong University of Science and Technology · Guangxi University of Science and Technology · +1 more institution
Abstract
Abstract The absence of two-dimensional (2D) van der Waals (vdW) ferromagnetic crystals with both above-room-temperature strong intrinsic ferromagnetism and large perpendicular magnetic anisotropy (PMA) severely hinders practical applications of 2D vdW crystals in next-generation low-power magnetoelectronic and spintronic devices. Here, we report a vdW intrinsic ferromagnetic crystal Fe 3 GaTe 2 that exhibits record-high above-room-temperature Curie temperature ( Tc , ~350-380 K) for known 2D vdW intrinsic ferromagnets, high saturation magnetic moment (40.11 emu/g), large PMA energy density (~4.79 × 10 5 J/m 3 ), and large anomalous Hall angle (3%) at room temperature. Such large room-temperature PMA is better…
Citation impact
- FWCI
- 27.43
- Percentile
- 100%
- References
- 39
Authors
8Topics & keywords
- Ferromagnetism
- Condensed matter physics
- Spintronics
- Curie temperature
- van der Waals force
- Materials science
- Hall effect
- Magnetic anisotropy
- Affordable and clean energy
Funding
- NNNational Natural Science Foundation of ChinaAwards: 51402118, 51502101, 61674063, 51502101, 51402118, 51502101, 61674063, 61674063
- HUHuazhong University of Science and Technology
- STScience, Technology and Innovation Commission of Shenzhen MunicipalityAward: JCYJ20210324142010030
- SMShenzhen Municipal Science and Technology Innovation Council
- NKNational Key Research and Development Program of ChinaAwards: No. 2016YFB0700702, 2016YFB0700702
- FRFundamental Research Funds for the Central UniversitiesAward: 2021yjsCXCY055