Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb
- National Sun Yat-Sen University, Kaohsiuing (Taiwan). Dept. of Physics
- National Univ. of Singapore (Singapore). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore (Singapore). Dept. of Physics
- Northeastern Univ., Boston, MA (United States). Dept. of Physics
Using first-principles electronic structure calculations, we predict half-fluorinated GaBi honeycomb under tensile strain to harbor a quantum anomalous Hall (QAH) insulator phase. We show that this QAH phase is driven by a single inversion in the band structure at the Γ point. Moreover, we have computed the electronic spectrum of a half-fluorinated GaBi nanoribbon with zigzag edges, which shows that only one edge band crosses the Fermi level within the band gap. In conclusion, our results suggest that half-fluorination of the GaBi honeycomb under tensile strain could provide a new platform for developing novel spintronics devices based on the QAH effect.
- Research Organization:
- Temple Univ., Philadelphia, PA (United States); Northeastern Univ., Boston, MA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for the Computational Design of Functional Layered Materials (CCDM)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Center for Theoretical Sciences and the Ministry of Science and Technology of Taiwan
- Grant/Contract Number:
- SC0012575; FG02-07ER46352; AC02-05CH11231; NRF-NRFF2013-03; MOST-104-2112-M-110-002-MY3; MOST-103-2112-M- 110-008-MY3
- OSTI ID:
- 1326664
- Journal Information:
- Scientific Reports, Vol. 6; ISSN 2045-2322
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 12 works
Citation information provided by
Web of Science
Web of Science
Structural and electronic properties of hydrogenated GaBi and InBi honeycomb monolayers with point defects
|
journal | January 2018 |
Highly-ordered wide bandgap materials for quantized anomalous Hall and magnetoelectric effects
|
journal | April 2017 |
Prediction of Quantum Anomalous Hall Effect in MBi and MSb (M:Ti, Zr, and Hf) Honeycombs
|
journal | February 2018 |
Similar Records
Quantum anomalous Hall insulator phase in asymmetrically functionalized germanene
Quantum anomalous Hall insulator phases in Fe-doped GaBi honeycomb
Prediction of two-dimensional topological insulator by forming a surface alloy on Au/Si(111) substrate
Journal Article
·
Mon Oct 16 00:00:00 EDT 2017
· Physical Review B
·
OSTI ID:1326664
+8 more
Quantum anomalous Hall insulator phases in Fe-doped GaBi honeycomb
Journal Article
·
Sun Jul 26 00:00:00 EDT 2020
· Chinese Journal of Physics
·
OSTI ID:1326664
+5 more
Prediction of two-dimensional topological insulator by forming a surface alloy on Au/Si(111) substrate
Journal Article
·
Tue Jan 19 00:00:00 EST 2016
· Physical Review B
·
OSTI ID:1326664
+7 more