This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.101.134418 in citations.
Please use the identifier: http://hdl.handle.net/2128/25260 in citations.
Magnetic anisotropy in ferromagnetic CrI 3
Magnetic anisotropy in ferromagnetic CrI 3
We use neutron scattering to show that ferromagnetic (FM) phase transition in the two-dimensional (2D)honeycomb lattice CrI3 is a weakly first order transition and controlled by spin-orbit coupling (SOC) inducedmagnetic anisotropy, instead of magnetic exchange coupling as in a conventional ferromagn...
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Personal Name(s): | Chen, Lebing |
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Chung, Jae-Ho (Corresponding author) / Chen, Tong / Duan, Chunruo / Schneidewind, Astrid / Radelytskyi, Igor / Voneshen, David J. / Ewings, Russell A. / Stone, Matthew B. / Kolesnikov, Alexander I. / Winn, Barry / Chi, Songxue / Mole, R. A. / Yu, D. H. / Gao, Bin / Dai, Pengcheng (Corresponding author) | |
Contributing Institute: |
Heinz Maier-Leibnitz Zentrum; MLZ Streumethoden; JCNS-2 JCNS-FRM-II; JCNS-FRM-II |
Published in: | Physical Review B Physical review / B, 101 101 (2020 2020) 13 13, S. 134418 134418 |
Imprint: |
Woodbury, NY
Inst.
2020
|
DOI: |
10.1103/PhysRevB.101.134418 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) Quantum Condensed Matter: Magnetism, Superconductivity FRM II / MLZ |
Subject (ZB): | |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/25260 in citations.
We use neutron scattering to show that ferromagnetic (FM) phase transition in the two-dimensional (2D)honeycomb lattice CrI3 is a weakly first order transition and controlled by spin-orbit coupling (SOC) inducedmagnetic anisotropy, instead of magnetic exchange coupling as in a conventional ferromagnet. With increasingtemperature, the magnitude of magnetic anisotropy, seen as a spin gap at the Brillouin zone center, decreasesin a power law fashion and vanishes at TC, while the in-plane and c-axis spin-wave stiffnesses associated withmagnetic exchange couplings remain robust at TC.We also compare parameter regimes where spin waves in CrI3can be described by a Heisenberg Hamiltonian with Dzyaloshinskii-Moriya interaction or a Heisenberg-KitaevHamiltonian. These results suggest that the SOC induced magnetic anisotropy plays a dominant role in stabilizingthe FM order in single layer 2D van der Waals ferromagnets. |