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The scattering effects are studied in nanometer-scaled double-gate MOSFET, using Monte Carlo simulation. The non-equilibrium transport in the channel is analyzed with the help of the spectroscopy of the number of scatterings experienced by…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. Saint Martin , A. Bournel , P. Dollfus

The influence of defects on electron transport in single-wall carbon nanotube field effect transistors (CNFETs) is probed by combined scanning gate microscopy (SGM) and scanning impedance microscopy (SIM). SGM reveals a localized field…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Marcus Freitag , Sergei V. Kalinin , Dawn A. Bonnell , A. T. Johnson

A physics-based compact model for silicon gate-all-around (GAA) nanowire tunneling FETs (NW-tFETs) with good accuracy has been developed by considering Phonon-Assisted Tunneling (PAT) and transition from Quantum Capacitance Limit (QCL) to…

Mesoscale and Nanoscale Physics · Physics 2014-12-08 Qiming Shao , Can Zhao , Jinyu Zhang , Li Zhang , Zhiping Yu

We study the surface conductivity of a field-effect transistor (FET) made of periodic array of spherical semiconductor nanocrystals (NCs). We show that electrons introduced to NCs by the gate voltage occupy one or two layers of the array.…

Mesoscale and Nanoscale Physics · Physics 2014-06-11 K. V. Reich , Tianran Chen , B. I. Shklovskii

Carbon Nanotube (CNT) appears as a promising candidate to shrink field-effect transistors (FET) to the nanometer scale. Extensive experimental works have been performed recently to develop the appropriate technology and to explore DC…

Other Condensed Matter · Physics 2009-11-13 H. Cazin d'Honincthun , S. Galdin-Retailleau , A. Bournel , P. Dollfus , J. -P. Bourgoin

Tunnel Field Effect Transistors (TFET) have extremely low leakage current, exhibit excellent subthreshold swing and are less susceptible to short channel effects. However, TFETs do face certain special challenges, particularly with respect…

Mesoscale and Nanoscale Physics · Physics 2010-10-19 Sneh Saurabh , M. Jagadesh Kumar

The performance and scalability of two-dimensional (2D) field-effect transistors (FETs) are strongly influenced by geometry-defined electrostatics. In most 2D FET studies, the gate overlaps with the source and drain electrodes, allowing the…

Mesoscale and Nanoscale Physics · Physics 2025-11-14 Victoria M. Ravel , Sarah R. Evans , Samantha K. Holmes , James L. Doherty , Md Sazzadur Rahman , Tania Roy , Aaron D. Franklin

The electrostatic coupling between singled-walled carbon nanotube (SWNT) networks/arrays and planar gate electrodes in thin-film transistors (TFTs) is analyzed both in the quantum limit with an analytical model and in the classical limit…

Materials Science · Physics 2010-01-12 Qing Cao , Minggang Xia , Coskun Kocabas , Moonsub Shim , John A. Rogers , Slava V. Rotkin

We investigate the impact of edge roughness on the electrical transport properties of magnetic tunnel junctions using non-equilibrium Greens function formalism. We have modeled edge roughness as a stochastic variation in the cross-sectional…

Mesoscale and Nanoscale Physics · Physics 2023-06-29 Rachit R. Pandey , Sutapa Dutta , Heston A. Mendonca , Ashwin A. Tulapurkar

We propose a framework to model ferroelectric negative capacitance: electrostatic Micro Electro Mechanical Systems (MEMS) hybrid actuators and analyze their dynamic (step input) response. Using this framework, we report the first proposal…

Applied Physics · Physics 2020-11-05 Raghuram TR , Arvind Ajoy

Recently, short channel effects (SCE) and power consumption dissipation problems pose big challenges which need imperative actions to be taken to deal with for field effect transistor to further scale down as semiconductor technology enters…

Applied Physics · Physics 2023-04-18 Laixiang Qin , Chunlai Li , Ziang Xie , Yiqun Wei , Jin He

Negative differential conductance (NDC), characterized by the decreasing current with increasing voltage, has attracted continuous attention for its various novel applications. The NDC typically exists in a certain range of bias voltages…

Mesoscale and Nanoscale Physics · Physics 2018-04-04 Si-Yu Li , Haiwen Liu , Jia-Bin Qiao , Hua Jiang , Lin He

Carbon Nanotube (CNT) is one of the most significant materials for the development of faster and improved performance of nano-scaled transistors. This paper aims at analyzing a trade-off between device performance and device size of CNT…

Applied Physics · Physics 2018-11-20 Imtiaj Khan , Ovishek Morshed , Sharif Mohammad Mominuzzaman

A current constrained approach is proposed to calculate negative differential conductance in molecular nano-junctions. A four-site junction is considered where a steady-state current is forced by inserting only the two central sites within…

Mesoscale and Nanoscale Physics · Physics 2016-11-26 Prakash Parida , Swapan K. Pati , Anna Painelli

In this work, we clarify the physical mechanism for the phenomenon of negative output differential resistance (NDR) in short-channel graphene FETs (GFETs) through non-equilibrium Green's function (NEGF) simulations and a simpler…

Mesoscale and Nanoscale Physics · Physics 2012-12-27 Roberto Grassi , Tony Low , Antonio Gnudi , Giorgio Baccarani

In this Letter, we consider a Non-Commutative (NC) extension of AdS-CFT correspondence and its effects on holographic superconductors. NC corrections are incorporated via the NC generalization of Schwarzschild black hole metric in AdS with…

High Energy Physics - Theory · Physics 2015-06-18 Souvik Pramanik , Sudipta Das , Subir Ghosh

Capacitance-voltage characteristics of individual germanium nanowire field effect transistors were directly measured and used to assess carrier mobility in nanowires for the first time; thereby removing uncertainties in calculated mobility…

Materials Science · Physics 2007-05-23 Ryan Tu , Li Zhang , Yoshio Nishi , Hongjie Dai

The latest field-effect transistors are entering the regime where quantum effects within the conduction channel can play a significant role because of the increasingly reduced dimensions. We investigate the effects of quantized states in…

Mesoscale and Nanoscale Physics · Physics 2024-02-06 P. Xu , H. Luo

We propose an analytical device model for a graphene nanoribbon field-effect transistor (GNR-FET). The GNR-FET under consideration is based on a heterostructure which consists of an array of nanoribbons clad between the highly conducting…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Ryzhii , A. Satou , V. Ryzhii , T. Otsuji

Tunneling field-effect transistors (FETs) have been intensely explored recently due to its potential to address power concerns in nanoelectronics. The recently discovered graphene nanoribbon (GNR) is ideal for tunneling FETs due to its…

Materials Science · Physics 2009-09-30 Pei Zhao , Jyotsna Chauhan , Jing Guo
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