Prediction of intrinsic two dimensional ferromagnetism realized quantum anomalous Hall effect

2019 ◽  
Vol 21 (12) ◽  
pp. 6712-6717 ◽  
Author(s):  
Ping Li
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Honeycomb Lattice ◽  
Two Dimensional ◽  
Quantum Anomalous Hall Effect ◽  
Insulating Phase

The monolayer of FeX3 (X = Cl, Br, I) possesses a quantum anomalous Hall insulating phase generated by the honeycomb lattice of iron atoms.

Ferromagnetic dual topological insulator in a two-dimensional honeycomb lattice

2020 ◽  
Vol 7 (9) ◽  
pp. 2431-2438
Author(s):  
Hao Wang ◽  
Ning Mao ◽  
Chengwang Niu ◽  
Shiying Shen ◽  
Myung-Hwan Whangbo ◽  
...  
Keyword(s):  
Hall Effect ◽  
Topological Insulator ◽  
Topological Insulators ◽  
Anomalous Hall Effect ◽  
Topological Invariant ◽  
Honeycomb Lattice ◽  
Two Dimensional ◽  
Edge States ◽  
Quantum Anomalous Hall Effect ◽  
Significant Attention

Magnetic topological insulators (TIs), including the quantum anomalous Hall effect and antiferromagnetic TIs, have attracted significant attention owing to the exotic properties they give rise to, however, ferromagnetic TIs with gapless surface/edge states and a nonzero topological invariant have not been reported so far.

High-temperature Dirac half-metal PdCl3: a promising candidate for realizing quantum anomalous Hall effect

2018 ◽  
Vol 6 (38) ◽  
pp. 10284-10291 ◽  
Author(s):  
Ya-ping Wang ◽  
Sheng-shi Li ◽  
Chang-wen Zhang ◽  
Shu-feng Zhang ◽  
Wei-xiao Ji ◽  
...  
Keyword(s):  
High Temperature ◽  
Hall Effect ◽  
Single Layer ◽  
Anomalous Hall Effect ◽  
Two Dimensional ◽  
Promising Candidate ◽  
Ideal Candidate ◽  
Half Metal ◽  
Quantum Anomalous Hall Effect

Single-layer PdCl3, a new two-dimensional honeycomb metal–halogen lattice, is proposed as an ideal candidate for realizing both a Dirac half-metal and the quantum anomalous Hall effect.

scholarly journals Influence of magnetic disorders on quantum anomalous Hall effect in magnetic topological insulator films beyond the two-dimensional limit

2018 ◽  
Vol 20 (4) ◽  
pp. 043011 ◽  
Author(s):  
Yanxia Xing ◽  
Fuming Xu ◽  
King Tai Cheung ◽  
Qing-feng Sun ◽  
Jian Wang ◽  
...  
Keyword(s):  
Hall Effect ◽  
Topological Insulator ◽  
Anomalous Hall Effect ◽  
Two Dimensional ◽  
Quantum Anomalous Hall Effect

scholarly journals Observation of Possible Nonlinear Anomalous Hall Effect in Organic Two-Dimensional Dirac Fermion System

2021 ◽  
Author(s):  
Andhika Kiswandhi ◽  
Toshihito Osada
Keyword(s):  
Hall Effect ◽  
Charge Order ◽  
Anomalous Hall Effect ◽  
Zero Magnetic Field ◽  
Dirac Fermion ◽  
Two Dimensional ◽  
Electronic Phase ◽  
Direction Dependence ◽  
Insulating Phase ◽  
Massless Dirac Fermion

Abstract We report the observation of nonlinear anomalous Hall effect (NLAHE) in the multilayered organic conductor α-(BEDT-TTF)2I3 in the charge order (CO) insulating phase just under the critical pressure for transition into two-dimensional (2D) massless Dirac fermion (DF) phase. We successfully extracted the finite nonlinear Hall voltage proportional to square current at zero magnetic field. The observed NLAHE features, current direction dependence and correlation with CO, are consistent with the previous estimation assuming 2D massive DF with a pair of tilted Dirac cones. This is the first observation of topological transport in organic conductors, and also the first example of NLAHE in the electronic phase with spontaneous symmetry breaking.

Two-dimensional Dirac spin-gapless semiconductors with tunable perpendicular magnetic anisotropy and a robust quantum anomalous Hall effect

2020 ◽  
Vol 7 (8) ◽  
pp. 2071-2077 ◽  
Author(s):  
Qilong Sun ◽  
Yandong Ma ◽  
Nicholas Kioussis
Keyword(s):  
Magnetic Anisotropy ◽  
Low Power ◽  
Hall Effect ◽  
Perpendicular Magnetic Anisotropy ◽  
Anomalous Hall Effect ◽  
Two Dimensional ◽  
Power Switching ◽  
Quantum Anomalous Hall Effect ◽  
Spin Gapless Semiconductors ◽  
Dirac Spin

A 2D ferromagnetic Fe2I2 layer with a robust QAH effect towards the low-power switching of PMA in multiferroic Fe2I2/BaTiO3 bilayers.

scholarly journals Scale-Invariant Quantum Anomalous Hall Effect in Magnetic Topological Insulators beyond the Two-Dimensional Limit

2014 ◽  
Vol 113 (13) ◽  
Author(s):  
Xufeng Kou ◽  
Shih-Ting Guo ◽  
Yabin Fan ◽  
Lei Pan ◽  
Murong Lang ◽  
...  
Keyword(s):  
Hall Effect ◽  
Topological Insulators ◽  
Anomalous Hall Effect ◽  
Two Dimensional ◽  
Scale Invariant ◽  
Quantum Anomalous Hall Effect ◽  
Invariant Quantum

First-principles study of bilayer hexagonal structure of SN2 nanosheet: a highly stable non-metal platform for the quantum anomalous Hall effect

2021 ◽  
Author(s):  
Yanli Wang ◽  
Yi Ding
Keyword(s):  
Transition Metal ◽  
Hall Effect ◽  
First Principles ◽  
Transition Metal Dichalcogenides ◽  
Anomalous Hall Effect ◽  
Hexagonal Structure ◽  
Two Dimensional ◽  
First Principles Study ◽  
Quantum Anomalous Hall Effect ◽  
Metal Dichalcogenides

Although layered metal dinitrides (MN2) have been proposed as the cousins of transition-metal dichalcogenides, the non-MoS2-type geometries are found to be more favourable in two-dimensional (2D) MN2 nanosheets. In this...

The Dirac half-semimetal and quantum anomalous Hall effect in two-dimensional Janus Mn2X3Y3 (X, Y = F, Cl, Br, I)

2021 ◽  
Author(s):  
Ping Li ◽  
Zhi-Xin Guo
Keyword(s):  
Hall Effect ◽  
Low Temperatures ◽  
Topological Insulators ◽  
Magnetic Coupling ◽  
Anomalous Hall Effect ◽  
Two Dimensional ◽  
Quantum Anomalous Hall Effect ◽  
Magnetically Doped

The quantum anomalous Hall (QAH) effect have been experimentally observed in magnetically- doped topological insulators. However, the QAH effect only at extremely low temperatures due to the weak magnetic coupling,...

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