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- Title
In‐Plane Quantum Anomalous Hall Effect in Ferromagnetic Type‐I Nodal Line Semimetal of Monolayer YbN.
- Authors
Liu, Ze; Li, Jia; Li, Linyang; Mao, Xiujuan; Wang, Guang; Zhang, Qian; Jin, Yuming
- Abstract
The monolayer YbN is predicted to be a 2D nodal line semimetal with full spin polarization in the absence of spin–orbit coupling as well as an intrinsic ferromagnet with an easy magnetic xy plane and Tc = 85 K. Considering the spin–orbit coupling with magnetic moments along z direction, the band crossings near Fermi level around Γ points are still preserved and robust against spin–orbit coupling. On the contrary, when the spin–orbit coupling is considered with magnetic moments oriented in‐plane along x and y directions, the band crossings are broken, and the bandgap of the magnetic moment along the y direction is larger than that in the x direction, which results in topologically nontrivial insulating property. The anomalous Hall conductivity calculations show the Chern number C = −1, implying the existence of one edge state in the finite‐width nanoribbon. The findings provide ideal candidates for investigating the design of electronic devices related to 2D nontrivial magnetic materials.
- Subjects
QUANTUM Hall effect; ANOMALOUS Hall effect; SPIN-orbit interactions; MAGNETIC materials; MAGNETIC moments
- Publication
Physica Status Solidi (B), 2023, Vol 260, Issue 3, p1
- ISSN
0370-1972
- Publication type
Article
- DOI
10.1002/pssb.202200377