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相关论文: Strain-induced magnetism in MoS2 monolayer with de…

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Two-dimensional (2D) graphene and graphene-related materials (GRMs) show great promise for future electronic devices. Nevertheless, GRMs result distinct properties under the influence of the substrate that serves as support through uneven…

We present a computational study on the impact of tensile/compressive uniaxial ($\varepsilon_{xx}$) and biaxial ($\varepsilon_{xx}=\varepsilon_{yy}$) strain on monolayer MoS$_{2}$ NMOS and PMOS FETs. The material properties like band…

介观与纳米尺度物理 · 物理学 2013-08-02 Amretashis Sengupta , Ram Krishna Ghosh , Santanu Mahapatra

Electron irradiation-induced damage is often the limiting factor in imaging materials prone to ionization or electronic excitations due to inelastic electron scattering. Quantifying the related processes at the atomic scale has only become…

Semiconducting monolayer of 2D material are able to concatenate multiple interesting properties into a single component. Here, by combining opto-mechanical and electronic measurements, we demonstrate the presence of a partial 2H-1T phase…

Using density functional theory, we explore the possibility of two monolayer monochalcogenides, namely, MoS and WS (buckled and puckered). Our results on cohesive energy and phonon dispersion predict that the buckled structures of both MoS…

材料科学 · 物理学 2019-09-04 Dhanshree Pandey , Aparna Chakrabarti

A momentum balance equation is developed to investigate the magnetotransport properties in monolayer molybdenum disulphide when a strong perpendicular magnetic field and a weak in-plane electric field are applied simultaneously. At low…

介观与纳米尺度物理 · 物理学 2015-09-10 C. M. Wang , X. L. Lei

Biaxial strain dependence of electronic structures and thermoelectric properties of monolayer $\mathrm{MoS_2}$, including compressive and tensile strain, are investigated by using local-density approximation (LDA) plus spin-orbit coupling…

材料科学 · 物理学 2016-02-12 San-Dong Guo

Monolayer transition metal dichalcogenides are promising materials for photoelectronic devices. Among them, molybdenum disulphide (MoS$_2$) and tungsten disulphide (WS$_2$) are some of the best candidates due to their favorable band gap…

材料科学 · 物理学 2015-06-19 Luqing Wang , Alex Kutana , Boris I. Yakobson

We demonstrate that the electrical property of a single layer molybdenum disulfide (MoS2) can be significantly tuned from semiconducting to insulating regime via controlled exposure to oxygen plasma. The mobility, on-current and resistance…

Continued progress in high speed computing depends on breakthroughs in both materials synthesis and device architectures. The performance of logic and memory can be enhanced significantly by introducing a memristor, a two terminal device…

介观与纳米尺度物理 · 物理学 2015-04-08 V. K. Sangwan , D. Jariwala , I. S. Kim , K. -S. Chen , T. J. Marks , L. J. Lauhon , M. C. Hersam

The monolayer Gallium sulfide (GaS) was demonstrated as a promising two-dimensional semiconductor material with considerable band gaps. The present work investigates the band gap modulation of GaS monolayer under biaxial or uniaxial strain…

材料科学 · 物理学 2021-05-24 M. Mosaferi , I. Abdolhosseini Sarsari , M. Alaei

Tuning the electronic and magnetic properties of a material through strain engineering is an effective strategy to enhance the performance of electronic and spintronic devices. Recently synthesized two-dimensional transition metal carbides…

介观与纳米尺度物理 · 物理学 2014-04-04 Shijun Zhao , Wei Kang , Jianming Xue

Two-dimensional (2D) materials, such as molybdenum disulfide (MoS2), have been shown to exhibit excellent electrical and optical properties. The semiconducting nature of MoS2 allows it to overcome the shortcomings of zero-bandgap graphene,…

介观与纳米尺度物理 · 物理学 2012-09-17 Han Wang , Lili Yu , Yi-Hsien Lee , Yumeng Shi , Allen Hsu , Matthew Chin , Lain-Jong Li , Madan Dubey , Jing Kong , Tomas Palacios

Two-dimensional materials are extraordinarily sensitive to external stimuli, making them ideal for studying fundamental properties and for engineering devices with new functionalities. One such stimulus, strain, affects the magnetic…

In this work, the electrical and spin properties of monolayer MoSi2X4 (X= N, P, As, and Sb) under vertical strain are investigated. The band structures state that MoSi2N4 is an indirect semiconductor, whereas other compounds are direct…

材料科学 · 物理学 2021-09-22 Shoeib Babaee Touski , Nayereh Ghobadi

Two-dimensional (2D) materials with a twist between layers exhibit a moir\'e interference pattern with larger periodicity than any of the constituent layer unit cells. In these systems, a wealth of exotic phases appear that result from…

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). For M = Mo, Cr, W;…

介观与纳米尺度物理 · 物理学 2014-03-05 Ning Lu , Hongyan Guo , Lei Li , Jun Dai , Lu Wang , Wai-Ning Mei , Xiaojun Wu , Xiao Cheng Zeng

By combining {\it ab initio} calculations and experiments we demonstrate how the band gap of the transition metal tri-chalcogenide TiS$_3$ can be modified by inducing tensile or compressive strain. We show by numerical calculations that the…

Monolayer transition metal dichalcogenides (TMDs) bare large Berry curvature hotspots readily exploitable for geometric band effects. Tailoring and enhancement of these features via strain is an active research direction. Here, we consider…

材料科学 · 物理学 2019-10-08 Shahnaz Aas , Ceyhun Bulutay

Controlled variation of the electronic properties of 2D materials by applying strain has emerged as a promising way to design materials for customized applications. Using first principles density functional theory calculations, we show that…

材料科学 · 物理学 2015-09-22 Babu Ram , Aaditya Manjanath , Abhishek K. Singh