scholarly journals Tuning Electronic and Magnetic Properties of Early Transition-Metal Dichalcogenides via Tensile Strain

2014 ◽  
Vol 118 (13) ◽  
pp. 7242-7249 ◽  
Author(s):  
Hongyan Guo ◽  
Ning Lu ◽  
Lu Wang ◽  
Xiaojun Wu ◽  
Xiao Cheng Zeng
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Tensile Strain ◽  
Transition Metal Dichalcogenides ◽  
Early Transition Metal ◽  
Electronic And Magnetic Properties ◽  
Metal Dichalcogenides ◽  
Early Transition

Metal Dichalcogenide Nanomeshes: Structural, Electronic and Magnetic Properties

2021 ◽  
Author(s):  
Mohamed Helal ◽  
H. M. El-Sayed ◽  
Ahmed A Maarouf ◽  
Mohamed Fadlallah
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Structural Stability ◽  
Density Functional ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Functional Theory ◽  
Electronic And Magnetic Properties ◽  
Metal Dichalcogenides

Motivated by the successful preparation of two-dimensional transition metal dichalcogenides (2D- TMDs) nanomeshes in the last three years, we use density functional theory (DFT) to study the structural stability, mechanical,...

scholarly journals Strain Induced Phase Transition of WS2 by Local Dewetting of Au/Mica Film upon Annealing

Surfaces ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 1-8
Author(s):  
Tomasz Kosmala ◽  
Pawel Palczynski ◽  
Matteo Amati ◽  
Luca Gregoratti ◽  
Hikmet Sezen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Metal ◽  
Thermal Annealing ◽  
Tensile Strain ◽  
Structural Phase ◽  
Transition Metal Dichalcogenides ◽  
Proof Of Concept ◽  
Threshold Strain ◽  
Metal Dichalcogenides ◽  
Phase Engineering

Here, we present a proof-of-concept experiment where phase engineering at the nanoscale of 2D transition metal dichalcogenides (TMDC) flakes (from semiconducting 2H phase to metallic 1T phase) can be achieved by thermal annealing of a TMDC/Au/mica system. The local dewetting of Au particles and resulting tensile strain produced on the TMDC flakes, strongly bound to the Au surface through effective S-Au bonds, can induce a local structural phase transition. An important role is also played by the defects induced by the thermal annealing: when vacancies are present, the threshold strain needed to trigger the phase transition is significantly reduced. Scanning photoelectron microscopy (SPEM) was revealed to be the perfect tool to monitor the described phenomena.

Strain-driven Phase Transition and Spin Polarization of Re-doped Transition-Metal Dichalcogenides

2021 ◽  
Author(s):  
Ruining Wang ◽  
Chen-Dong Jin ◽  
Hu Zhang ◽  
Ru-Qian Lian ◽  
Xingqiang Shi ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Spin Polarization ◽  
Transition Metal Dichalcogenides ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Energy Landscapes ◽  
Metal Dichalcogenides

Two-dimensional transition metal dichalcogenides (TMDCs) are promising in spintronics due to their spin-orbit coupling, but the intrinsic non-magnetic properties limit their further developments. Here, we focus on the energy landscapes...

scholarly journals MoS2/MX2 heterobilayers: bandgap engineering via tensile strain or external electrical field

Nanoscale ◽  
2014 ◽  
Vol 6 (5) ◽  
pp. 2879-2886 ◽  
Author(s):  
Ning Lu ◽  
Hongyan Guo ◽  
Lei Li ◽  
Jun Dai ◽  
Lu Wang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
First Principles ◽  
Tensile Strain ◽  
Transition Metal Dichalcogenide ◽  
Two Dimensional ◽  
Bandgap Engineering ◽  
Electrical Field ◽  
Electronic And Magnetic Properties ◽  
External Electrical Field

We have performed a comprehensive first-principles study of the electronic and magnetic properties of two-dimensional (2D) transition-metal dichalcogenide (TMD) heterobilayers MX2/MoS2 (M = Mo, Cr, W, Fe, V; X = S, Se).

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