scholarly journals Transition-metal phthalocyanine monolayers as new Chern insulators

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 3888-3893 ◽  
Author(s):  
Jie Li ◽  
Lei Gu ◽  
Ruqian Wu
Keyword(s):  
Transition Metal ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Square Lattice ◽  
Topological Properties ◽  
Metal Phthalocyanine ◽  
New Materials ◽  
Quantum Anomalous Hall Effect ◽  
Chern Insulators

To explore new materials for the realization of the quantum anomalous Hall effect (QAHE), we studied the electronic, magnetic and topological properties of transition-metal phthalocyanine (TMPc) monolayers in a square lattice.

The intrinsic magnetism, quantum anomalous Hall effect and Curie temperature in 2D transition metal trihalides

2020 ◽  
Vol 22 (4) ◽  
pp. 2429-2436 ◽  
Author(s):  
Jiaxiang Sun ◽  
Xin Zhong ◽  
Wenwen Cui ◽  
Jingming Shi ◽  
Jian Hao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Curie Temperature ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Quantum Anomalous Hall Effect

It has been theoretically demonstrated that 2D transition metal trihalides can host the QAH effect.

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...

scholarly journals Correction: The intrinsic magnetism, quantum anomalous Hall effect and Curie temperature in 2D transition metal trihalides

2020 ◽  
Vol 22 (5) ◽  
pp. 3128-3128 ◽  
Author(s):  
Jiaxiang Sun ◽  
Xin Zhong ◽  
Wenwen Cui ◽  
Jingming Shi ◽  
Jian Hao ◽  
...  
Keyword(s):  
Transition Metal ◽  
Curie Temperature ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Chem Phys ◽  
Quantum Anomalous Hall Effect ◽  
Phys Chem Chem Phys

Correction for ‘The intrinsic magnetism, quantum anomalous Hall effect and Curie temperature in 2D transition metal trihalides’ by Jiaxiang Sun et al., Phys. Chem. Chem. Phys., 2020, DOI: 10.1039/c9cp05084a.

scholarly journals Topological Phase and Quantum Anomalous Hall Effect in Ferromagnetic Transition-Metal Dichalcogenides Monolayer 1T-VSe2

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1998
Author(s):  
Angus Huang ◽  
Chin-Hsuan Chen ◽  
Ching-Hao Chang ◽  
Horng-Tay Jeng
Keyword(s):  
Transition Metal ◽  
Hall Effect ◽  
Transition Metal Dichalcogenides ◽  
Anomalous Hall Effect ◽  
Ferromagnetic Transition ◽  
Spin Orbit Coupling ◽  
Edge States ◽  
Quantum Anomalous Hall Effect ◽  
Metal Dichalcogenides ◽  
Crossing Point

Magnetic two-dimensional (2D) van der Waals materials have attracted tremendous attention because of their high potential in spintronics. In particular, the quantum anomalous Hall (QAH) effect in magnetic 2D layers shows a very promising prospect for hosting Majorana zero modes at the topologically protected edge states in proximity to superconductors. However, the QAH effect has not yet been experimentally realized in monolayer systems to date. In this work, we study the electronic structures and topological properties of the 2D ferromagnetic transition-metal dichalcogenides (TMD) monolayer 1T−VSe2 by first-principles calculations with the Heyd–Scuseria–Ernzerhof (HSE) functional. We find that the spin-orbit coupling (SOC) opens a continuous band gap at the magnetic Weyl-like crossing point hosting the quantum anomalous Hall effect with Chern number C=2. Moreover, we demonstrate the topologically protected edge states and intrinsic (spin) Hall conductivity in this magnetic 2D TMD system. Our results indicate that 1T−VSe2 monolayer serves as a stoichiometric quantum anomalous Hall material.

scholarly journals Intrinsic ferromagnetism and quantum anomalous Hall effect in a CoBr2monolayer

2017 ◽  
Vol 19 (21) ◽  
pp. 13432-13437 ◽  
Author(s):  
Peng Chen ◽  
Jin-Yu Zou ◽  
Bang-Gui Liu
Keyword(s):  
Density Functional Theory ◽  
Hall Effect ◽  
Density Functional ◽  
Tight Binding ◽  
Anomalous Hall Effect ◽  
Topological Properties ◽  
Functional Theory ◽  
Quantum Anomalous Hall Effect ◽  
Intrinsic Ferromagnetism

The electronic, magnetic, and topological properties of a CoBr2monolayer are studied in the framework of density-functional theory (DFT) combined with tight-binding (TB) modeling in terms of the Wannier basis.

scholarly journals Quantum anomalous Hall effect in ferromagnetic transition metal halides

2017 ◽  
Vol 95 (4) ◽  
Author(s):  
Chengxi Huang ◽  
Jian Zhou ◽  
Haiping Wu ◽  
Kaiming Deng ◽  
Puru Jena ◽  
...  
Keyword(s):  
Transition Metal ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Ferromagnetic Transition ◽  
Metal Halides ◽  
Quantum Anomalous Hall Effect
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