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Charge and heat transport through a single molecule tunnel-coupled to external normal electrodes have been studied. The molecule with sufficiently strong interaction between lectrons and vibrational internal degrees of freedom can be…

Mesoscale and Nanoscale Physics · Physics 2012-04-16 Karol Izydor Wysokinski

A weakly coupled system of two crossed graphene nanoribbons exhibits direct tunneling due to the overlap of the wavefunctions of both ribbons. We apply the Bardeen transfer Hamiltonian formalism, using atomistic band structure calculations…

Mesoscale and Nanoscale Physics · Physics 2016-08-02 Maarten L. Van de Put , William G. Vandenberghe , Bart Sorée , Wim Magnus , Massimo V. Fischetti

Graphene-like two-dimensional (2D) materials, not only are interesting for their exotic electronic structure and fundamental electronic transport or optical properties but also, hold promises for device miniaturization down to atomic…

In this work, an analytic model is proposed which provides in a continuous manner the current-voltage characteristic (I-V) of high performance tunneling field-effect transistors (TFETs) based on direct bandgap semiconductors. The model…

Mesoscale and Nanoscale Physics · Physics 2016-08-24 Hesameddin Ilatikhameneh , Ramon B. Salazar , Gerhard Klimeck , Rajib Rahman , Joerg Appenzeller

Crystalline two-dimensional (2D) superconductors with low carrier density are an exciting new class of materials in which superconductivity coexists with strong interactions, the effects of complex topology are not obscured by disorder, and…

In this paper I study the posibility of inducing a single-electron current by rotating a non-magnetic conducting rod with a small tunnel junction immerse in a uniform magnetic field perpendicular to the plane of motion. I show first, by…

Mesoscale and Nanoscale Physics · Physics 2011-12-09 Gabriel Gonzalez

The triple heterojunction TFET has been originally proposed to resolve TFET's low ON-current challenge. The carrier transport in such devices is complicated due to the presence of quantum wells and strong scattering. Hence, the full band…

Two-dimensional (2D) layered semiconductors, with their ultimate atomic thickness, have shown promise to scale down transistors for modern integrated circuitry. However, the electrical contacts that connect these materials with external…

Transistors, regardless of their size, rely on electrical gates to control the conductance between source and drain contacts. In atomic-scale transistors, this conductance is exquisitely sensitive to single electrons hopping via individual…

Twisted heterostructures of two-dimensional crystals offer almost unlimited scope for the design of novel metamaterials. Here we demonstrate a room-temperature ferroelectric semiconductor that is assembled using mono- or few- layer MoS2.…

Two-dimensional (2D) semiconductors offer a promising prospect for high-performance and energy-efficient devices especially in the sub-10 nm regime. Inspired by the successful fabrication of 2D $\beta$-TeO$_2$ and the high on/off ratio and…

Mesoscale and Nanoscale Physics · Physics 2022-02-17 Shiying Guo , Hengze Qu , Wenhan Zhou , Shengyuan A. Yang , Yee Sin Ang , Jing Lu , Haibo Zeng , Shengli Zhang

Molybdenum disulfide is considered as one of the most promising two-dimensional semiconductors for electronic and optoelectronic device applications. So far, the charge transport in monolayer molybdenum disulfide is dominated by extrinsic…

One of the most fundamental difference between classical and quantum mechanics is observed in the particle tunneling through a localized potential: the former predicts a discontinuous transmission coefficient ($T$) as a function in incident…

Quantum Gases · Physics 2015-06-05 Ching-Hao Wang , Tzay-Ming Hong , Ray-Kuang Lee , Daw-Wei Wang

A theory of transport in the quantum Hall regime is developed for separately contacted double-layer electron systems. Inter-layer tunneling provides a channel for equilibration of the distribution functions in the two layers at the edge…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 Daijiro Yoshioka

We theoretically investigate the propagation of heat currents in a three-terminal quantum dot engine. Electron-electron interactions introduce state-dependent processes which can be resolved by energy-dependent tunneling rates. We identify…

Mesoscale and Nanoscale Physics · Physics 2017-11-30 Rafael Sánchez , Holger Thierschmann , Laurens W. Molenkamp

We report on "graphene-like" mechanical exfoliation of thin films of titanium ditelluride and investigation of their electronic properties. The exfoliated crystalline TiTe2 films were used as the channel layers in the back-gated…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 J. Khan , C. M. Nolen , D. Teweldebrhan , D. Wickramaratne , R. K. Lake , A. A. Balandin

The vertical configuration is a powerful tool recently developed experimentally to investigate field effects in quasi 2D systems. Prototype graphene-based vertical tunneling transistors can achieve an extraordinary control over current…

Mesoscale and Nanoscale Physics · Physics 2017-05-17 Yun-Peng Wang , J. N. Fry , Hai-Ping Cheng

Atomtronics experiments with ultracold atomic gases allow us to explore quantum transport phenomena of a weakly-interacting Bose-Einstein condensate (BEC). Here, we focus on two-terminal transport of such a BEC in the vicinity of zero…

Quantum Gases · Physics 2021-10-25 Shun Uchino

In this paper, we have worked out a pseudo two dimensional (2D) analytical model for surface potential and drain current of a long channel p-type Dual Material Gate (DMG) Gate All-Around (GAA) nanowire Tunneling Field Effect Transistor…

Mesoscale and Nanoscale Physics · Physics 2014-06-23 Rajat Vishnoi , M. Jagadesh Kumar

The hole carrier field-effect mobility of hybrid molybdenum disulfide (MoS2) nanoparticles suspended in poly(3-hexylthiophene) (P3HT) thin film transistor (TFT) was found to be enhanced when it compared to P3HT-only TFTs. The improvement in…

Applied Physics · Physics 2020-02-05 Hyunwoo Choi , William Wong
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