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The electronic spectrum of metallic finite-size single-wall carbon nanotubes at low energies is derived. It is based on a tight-binding description for the interacting p_{z} electrons. Not only the forward scattering parts of the Coulomb…

介观与纳米尺度物理 · 物理学 2008-07-31 Leonhard Mayrhofer , Milena Grifoni

Controlled growth, patterning and placement of carbon nanotube (CNT) thin films for electronic applications are demonstrated. The density of CNT films is controlled by optimizing the feed gas composition as well as the concentration of…

材料科学 · 物理学 2015-05-18 V. K. Sangwan , V. W. Ballarotto , D. R. Hines , M. S. Fuhrer , E. D. Williams

We propose a 3D neural network with specific loss functions for quantitative computed tomography (QCT) noise reduction to compute micro-structural parameters such as tissue mineral density (TMD) and bone volume ratio (BV/TV) with…

图像与视频处理 · 电气工程与系统科学 2020-11-11 Felix Thomsen , José M. Fuertes García , Manuel Lucena , Juan Pisula , Rodrigo de Luis García , Jan Broggrefe , Claudio Delrieux

In this study, a SPICE model for negative capacitance vertical nanowire field-effect-transistor (NC VNW-FET) based on BSIM-CMG model and Landau-Khalatnikov (LK) equation was presented. Suffering from the limitation of short gate length…

新兴技术 · 计算机科学 2020-02-11 Weixing Huang , Huilong Zhu , Kunpeng Jia , Zhenhua Wu , Xiaogen Yin , Qiang Huo , Yongkui Zhang

We have developed a method for extracting the high-frequency noise spectral density of an rf-SQUID flux qubit from macroscopic resonant tunneling (MRT) rate measurements. The extracted noise spectral density is consistent with that of an…

The two high-angle Time Projection Chambers of the T2K experiment are equipped with a new readout system based on resistive Micromegas detector technology, and utilize custom-made electronics based on AFTER chips for signal processing. This…

Molecular Communication (MC) is a bio-inspired communication method based on the exchange of molecules for information transfer among nanoscale devices. MC has been extensively studied from various aspects in the literature; however, the…

新兴技术 · 计算机科学 2016-07-26 M. Kuscu , O. B. Akan

The ntCT nano tomography system is a geometrically magnifying X-ray microscopy system integrating the recent Excillum NanoTube nano-focus X-ray source and a CdTe photon counting detector from Dectris. The system's modulation transfer…

仪器与探测器 · 物理学 2021-02-01 Jonas Graetz , Dominik Müller , Andreas Balles , Christian Fella

Bottom-up synthesized GNRs and GNR heterostructures have promising electronic properties for high performance field effect transistors (FETs) and ultra-low power devices such as tunnelling FETs. However, the short length and wide band gap…

Electromagnetic characteristics of single-walled finite-length carbon nanotubes - absorption cross-section and field enhancement in the near zone - are theoretically studied in a wide frequency range from terahertz to visible. The analysis…

材料科学 · 物理学 2008-06-19 M. V. Shuba , S. A. Maksimenko , G. Ya. Slepyan

In this article, the bias-dependence of intrinsic channel thermal noise of single-layer graphene field-effect transistors (GFETs) is thoroughly investigated by experimental observations and compact modeling. The findings indicate an…

介观与纳米尺度物理 · 物理学 2021-09-16 Nikolaos Mavredakis , Anibal Pacheco-Sanchez , Paulius Sakalas , Wei Wei , Emiliano Pallecchi , Henri Happy , David Jimenez

We have investigated random telegraph noise (RTN) observed in individual metallic carbon nanotubes (CNTs). Mean lifetimes in high- and low-current states, shigh and slow, have been studied as a function of bias-voltage and gate-voltage as…

介观与纳米尺度物理 · 物理学 2014-05-15 Hyun-Jong Chung , Tae Woo Uhm , Sung Won Kim , Young Gyu You , Sang Wook Lee , Sung Ho Jhang , Eleanor E. B. Campbell , Yung Woo Park

A simple scalable scheme is reported for fabricating suspended carbon nanotube field effect transistors (CNT-FETs) without exposing pristine as-grown carbon nanotubes to subsequent chemical processing. Versatility and ease of the technique…

介观与纳米尺度物理 · 物理学 2009-09-22 V. K. Sangwan , V. W. Ballarotto , M. S. Fuhrer , E. D. Williams

This study investigates two unavoidable noise factors: electronic noise and radiation scattering, associated with detectors and their electronics. This study proposes a novel methodology to estimate electronic and scattering noise…

仪器与探测器 · 物理学 2023-08-21 Mayank Goswami , Kajal Kumari

In this work we present a computational study of the small strain mechanics of freestanding ultrathin CNT films under in-plane loading. The numerical modeling of the mechanics of representatively large specimens with realistic micro- and…

介观与纳米尺度物理 · 物理学 2019-10-22 Igor Ostanin , Traian Dumitrică , Sebastian Eibl , Ulrich Rüde

This paper presents an estimation approach within the framework of uplink massive machine-type communications (mMTC) that considers the energy limitations of the devices. We focus on a scenario where a group of sensors observe a set of…

信号处理 · 电气工程与系统科学 2024-12-10 Sergi Liesegang , Olga Muñoz , Antonio Pascual-Iserte

In this study, we present the design and analysis of a Low Noise Amplifier tailored specifically for quantum applications. We selected the HEMT for its unique noise reduction properties, crucial for quantum engineering. The main goal is to…

量子物理 · 物理学 2024-08-16 Ahmad Salmanogli

We present a detailed theoretical investigation of transport through a single-walled carbon nanotube (SWNT) in good contact to metal leads where weak backscattering at the interfaces between SWNT and source and drain reservoirs gives rise…

介观与纳米尺度物理 · 物理学 2013-05-29 Patrik Recher , Na Young Kim , Yoshihisa Yamamoto

Substantial progress on field effect transistors "FETs" consisting of semiconducting single wall carbon nanotubes "s-SWNTs" without detectable traces of metallic nanotubes and impurities is reported. Nearly perfect removal of metallic…

We study the fluctuation-dissipation relation for sound waves in the cosmic microwave background (CMB), employing effective field theory (EFT) for fluctuating hydrodynamics. Treating sound waves as the linear response to thermal radiation,…

高能物理 - 理论 · 物理学 2024-02-13 Atsuhisa Ota
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