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...

Gas adsorption on MoS2/WS2 in-plane heterojunctions and the I–V response: a first principles study

RSC Advances ◽  
2016 ◽  
Vol 6 (21) ◽  
pp. 17494-17503 ◽  
Author(s):  
Jie Sun ◽  
Na Lin ◽  
Hao Ren ◽  
Cheng Tang ◽  
Letao Yang ◽  
...  
Keyword(s):  
Transition Metal ◽  
First Principles ◽  
Gas Adsorption ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
First Principles Study ◽  
Metal Dichalcogenides ◽  
Great Scope

New artificial in-plane heterojunctions based on two-dimensional transition metal dichalcogenides fabricated in recent reports are considered able to offer great scope for applications.

Black phosphorene/monolayer transition-metal dichalcogenides as two dimensional van der Waals heterostructures: a first-principles study

2016 ◽  
Vol 18 (10) ◽  
pp. 7381-7388 ◽  
Author(s):  
Baiqing You ◽  
Xiaocha Wang ◽  
Zhida Zheng ◽  
Wenbo Mi
Keyword(s):  
Electronic Structure ◽  
Transition Metal ◽  
First Principles ◽  
Van Der Waals ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures ◽  
First Principles Study ◽  
Black Phosphorene ◽  
Metal Dichalcogenides

The electronic structure of black phosphorene/XT2(X = Mo, W; T = S, Se, Te) two dimensional heterostructures is presented using the first-principles method.

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.

First-principles investigations of vanadium disulfide for lithium and sodium ion battery applications

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54874-54879 ◽  
Author(s):  
Wenhui Wang ◽  
Zhongti Sun ◽  
Wenshuai Zhang ◽  
Quanping Fan ◽  
Qi Sun ◽  
...  
Keyword(s):  
Transition Metal ◽  
First Principles ◽  
Transition Metal Dichalcogenides ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Two Dimensional ◽  
Scientific Interest ◽  
Metal Dichalcogenides ◽  
Layered Transition Metal

Recently, two-dimensional (2D) layered transition metal dichalcogenides (LTMDs) have attracted great scientific interest for ion battery applications.

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