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相关论文: Strain engineering of Janus transition metal dicha…

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We study the electronic response of Janus transition metal dihalide (TMH) nanotubes to mechanical deformations using Kohn-Sham density functional theory. Specifically, considering twelve armchair and zigzag Janus TMH nanotubes that are…

材料科学 · 物理学 2023-04-05 Arpit Bhardwaj , Phanish Suryanarayana

We study the effect of torsional deformations on the electronic properties of single-walled transition metal dichalcogenide (TMD) nanotubes. In particular, considering forty-five select armchair and zigzag TMD nanotubes, we perform…

材料科学 · 物理学 2021-09-22 Arpit Bhardwaj , Abhiraj Sharma , Phanish Suryanarayana

We study the influence of mechanical deformations on the Zeeman and Rashba effects in synthesized transition metal dichalcogenide (TMD) nanotubes and their Janus variants from first principles. In particular, we perform symmetry-adapted…

材料科学 · 物理学 2023-07-18 Arpit Bhardwaj , Phanish Suryanarayana

The transition-metal dichalcogenides (TMD) MoS2 and WS2 show remarkable electromechanical properties. Strain modifies the direct band gap into an indirect one, and substantial strain even induces an semiconductor-metal transition. Providing…

We calculate the elastic properties of Janus transition metal dichalcogenide (TMD) nanotubes using first principles Kohn-Sham density functional theory (DFT). Specifically, we perform electronic structure simulations that exploit the cyclic…

材料科学 · 物理学 2022-09-30 Arpit Bhardwaj , Phanish Suryanarayana

Two-dimensional (2D) transition metal dichalcogenide (TMD) materials have versatile electronic and optical properties. TMD nanoribbons show interesting properties due to reduced dimensionality, quantum confinement, and edge states. Tang et…

材料科学 · 物理学 2023-06-16 Santosh Neupane , Hong Tang , Adrienn Ruzsinszky

Two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDs) can withstand a large deformation without fracture or inelastic relaxation, making them attractive for application in novel strain-engineered and flexible…

材料科学 · 物理学 2016-01-18 Junwen Li , Nikhil V. Medhekar , Vivek B. Shenoy

Quantum dots (QDs) are nanoscale materials that exhibit unique electronic and optical properties due to quantum confinement effects, making them highly relevant for applications in catalysis, optoelectronics, and energy conversion. While…

Applying elastic deformation can tune a material physical properties locally and reversibly. Spatially modulated lattice deformation can create a bandgap gradient, favouring photo-generated charge separation and collection in optoelectronic…

In the field of 2D materials, transition metal dichalcogenides (TMDs) are gaining attention for electronic applications. Our study delves into the H-phase monolayer VS$_2$ of the TMD family, analyzing its electronic structure and how strain…

材料科学 · 物理学 2024-01-18 Oguzhan Orhan , Şener Özönder , Soner Ozgen

We calculate the torsional moduli of single-walled transition metal dichalcogenide (TMD) nanotubes using ab initio density functional theory (DFT). Specifically, considering forty-five select TMD nanotubes, we perform symmetry-adapted DFT…

材料科学 · 物理学 2021-05-26 Arpit Bhardwaj , Abhiraj Sharma , Phanish Suryanarayana

Tuning physical properties of transition metal dichalcogenide (TMD) monolayers by strain engineering have most widely studied, and recently Janus TMD monolayer MoSSe has been synthesized. In this work, we systematically study biaxial strain…

材料科学 · 物理学 2018-08-01 San-Dong Guo

Twisted multilayers of two-dimensional (2D) materials are an increasingly important platform for investigating quantum phases of matter, and in particular, strongly correlated electrons. The moir\'e pattern introduced by the relative twist…

材料科学 · 物理学 2023-01-11 Mattia Angeli , Gabriel R. Schleder , Efthimios Kaxiras

Two-dimensional Janus transition metal dichalcogenides (TMDs) have attracted attention due to their emergent properties arising from broken mirror symmetry and self-driven polarisation fields. While it has been proposed that their vdW…

Transition metal dichalcogenides (TMDs) attract significant attention due to their exceptional optical, excitonic, mechanical, and electronic properties. Nanostructured multilayer TMDs were recently shown to be highly promising for…

Quantum conductance calculations on the mechanically deformed monolayers of MoS$_2$ and WS$_2$ were performed using the non-equlibrium Green's functions method combined with the Landauer-B\"{u}ttiker approach for ballistic transport…

材料科学 · 物理学 2014-03-04 Mahdi Ghorbani-Asl , Stefano Borini , Agnieszka Kuc , Thomas Heine

Graphene nanoribbons are the counterpart of carbon nanotubes in graphene-based nanoelectronics. We investigate the electronic properties of chemically modified ribbons by means of density functional theory. We observe that chemical…

材料科学 · 物理学 2009-09-29 F. Cervantes-Sodi , G. Csányi , S. Piscanec , A. C. Ferrari

Two-dimensional (2D) Janus Transition Metal Dichalcogenides (TMDs) have attracted much interest due to their exciting quantum properties arising from their unique two-faced structure, broken-mirror symmetry, and consequent colossal…

MoS2 and WS2 layered transition-metal dichalcogenides are indirect band gap semiconductors in their bulk forms. Thinned to a monolayer, they undergo a transition and become direct band gap materials. Layered structures of that kind can be…

材料科学 · 物理学 2013-02-15 Nourdine Zibouche , Agnieszka Kuc , Thomas Heine

Angular perturbations modify the band structure of armchair (and other metallic) carbon nanotubes by breaking the tube symmetry and may induce a metal-semiconductor transition when certain selection rules are satisfied. The symmetry…

介观与纳米尺度物理 · 物理学 2021-07-02 Yan Li , Slava V. Rotkin , Umberto Ravaioli
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