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We study the microwave impedance of extremely high aspect ratio (length/width ~ 5,000) superconducting niobium nitride nanowires. The nanowires are fabricated in a compact meander geometry that is in series with the center conductor of a 50…

Superconductivity · Physics 2016-07-14 Daniel F. Santavicca , Jesse K. Adams , Lierd E. Grant , Adam N. McCaughan , Karl K. Berggren

In semiconductor electronics, the field-effect refers to the control of electrical conductivity in nanoscale devices, which underpins the field-effect transistor, one of the cornerstones of present-day semiconductor technology. The effect…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 Ilia Golokolenov , Andrew Guthrie , Sergey Kafanov , Yuri Pashkin , Viktor Tsepelin

In this work, we investigate multiphoton and optical-field tunneling emission from metallic surfaces with nanoscale vacuum gaps. Using time-dependent Schrodinger equation (TDSE) simulations, we find that the properties of the emitted…

The conductance change of nanowire field-effect transistors is considered a highly sensitive probe for surface charge. However, Debye screening of relevant physiological liquid environments challenge device performance due to competing…

Soft Condensed Matter · Physics 2007-09-05 Martin H. Sorensen , Niels Asger Mortensen , Mads Brandbyge

By using first-principles tight-binding electronic structure calculation and Boltzmann transport equation, we investigate the size dependence of thermoelectric properties of silicon nanowires (SiNWs). With cross section area increasing, the…

Materials Science · Physics 2015-05-13 Lihong Shi , Donglai Yao , Gang Zhang , Baowen Li

We demonstrate that the near-field thermal radiation between subwavelength SiC nanowires with square cross sections is dominated by multiple corner and edge resonances rather than the single surface-phonon-polariton channel of planar…

Mesoscale and Nanoscale Physics · Physics 2026-05-14 Jose Ordonez-Miranda , Minggang Luo , Michele Diego , Roman Anufriev , Victor Guillemot , Masahiro Nomura , Sebastian Volz

Semiconductor nanowires (NWs) have a broad range of applications for nano- and optoelectronics. The strain field of gallium nitride (GaN) NWs could be significantly changed when contacts are applied to them to form a final device,…

Nominally undoped silicon nanowires (NW) were grown by catalytic chemical vapor deposition. The growth process was optimized to control the NWs diameters by using different Au catalyst thicknesses on amorphous SiO2, Si3N4, or crystalline-Si…

As metal-oxide-semiconductor field-effect transistors (MOSFET) channel lengths (Lg) are scaled to lengths shorter than Lg<8 nm source-drain tunneling starts to become a major performance limiting factor. In this scenario a heavier transport…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Saumitra Mehrotra , SungGeun Kim , Tillmann Kubis , Michael Povolotskyi , Mark Lundstrom , Gerhard Klimeck

Recent studies on nanoscale field-effect sensors reveal the crucial importance of the low frequency noise for determining the ultimate detection limit. In this letter, the 1/f-type noise of Si nanoribbon field-effect sensors is…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 A. Tarasov , W. Fu , O. Knopfmacher , J. Brunner , M. Calame , C. Schönenberger

Temperature-dependent I-V and C-V spectroscopy of single InAs nanowire field-effect transistors were utilized to directly shed light on the intrinsic electron transport properties as a function of nanowire radius. From C-V…

Materials Science · Physics 2015-05-13 Alexandra Ford , Johnny Ho , Yu-Lun Chueh , Yu-Chih Tseng , Zhiyong Fan , Jing Guo , Jeffrey Bokor , Ali Javey

We report on the fabrication of nano-devices on the \hkl[-1 0 1] surface of a Weyl semimetal, a macroscopic crystal of TaAs, and low-temperature transport measurements. We can implement electron beam lithography by peeling off and…

The low-field electron mobility in rectangular silicon nanowire (SiNW) transistors was computed using a self-consistent Poisson-Schr\"{o}dinger-Monte Carlo solver. The behavior of the phonon-limited and surface-roughness-limited components…

Materials Science · Physics 2016-11-17 E. B. Ramayya , D. Vasileska , S. M. Goodnick , I. Knezevic

Significant field emission is found theoretically possible from nanorods of semiconductors of wide energy band gaps. If the nanorod has a thin surface layer containing a large number of localized states, a part of nanorod can exhibit an…

Other Condensed Matter · Physics 2007-05-23 Zhibing Li , Weiliang Wang , Shaozhi Deng , Ningsheng Xu , Guiyang Huang

Nanoscale superconductor-semiconductor hybrid devices are assembled from InAs semiconductor nanowires individually contacted by aluminum-based superconductor electrodes. Below 1 K, the high transparency of the contacts gives rise to…

Single-photon detectors have typically consisted of macroscopic materials where both the photon absorption and transduction to an electrical signal happen. Newly proposed designs suggest that large arrays of nanoscale detectors could…

Superconductivity · Physics 2021-05-05 Catalin D. Spataru , François Léonard

The electronic properties of a field-effect transistor with two different structures of MoSi$_2$N$_4$ and WSi$_2$N$_4$ monolayers as the channel material in the presence of biaxial strain are investigated. The band structures show that…

Materials Science · Physics 2022-06-09 Nayereh Ghobadi , Manouchehr Hosseini , Shoeib Babaee Touski

We demonstrate controllable shift of the threshold voltage and the turn-on voltage in pentacene thin film transistors and rubrene single crystal field effect transistors (FET) by the use of nine organosilanes with different functional…

Materials Science · Physics 2009-11-10 K. P. Pernstich , A. N. Rashid , S. Haas , G. Schitter , D. Oberhoff , C. Goldmann , D. J. Gundlach , B. Batlogg

In this letter we discuss how the short channel behavior in sub 100 nm channel range can be improved by inducing a step surface potential profile at the back gate of an asymmetrical double gate (DG) Silicon-On-Insulator (SOI)…

Mesoscale and Nanoscale Physics · Physics 2010-08-19 M. Jagadesh Kumar , G. V. Reddy

Spin field effect transistors (SpinFET) are an iconic class of spintronic devices that exploit gate tuned spin-orbit interaction in semiconductor channels interposed between ferromagnetic source and drain contacts to elicit transistor…

Mesoscale and Nanoscale Physics · Physics 2023-11-08 Rahnuma Rahman , Supriyo Bandyopadhyay