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Schottky barrier height and the ideality factor $\eta$ are established for the first time in the single phase (Ga,Mn)N using a vertical geometry device. The material has been heteroepitaxially grown on commercially available low threading…

Traditionally, Schottky diodes are used statically in the electronic information industry but dynamic state Schottky diodes based applications have been rarely explored. Herein, a novel Schottky diode named moving Schottky diode generator…

Applied Physics · Physics 2019-12-04 Shisheng Lin , Yanghua Lu , Sirui Feng , Zhenzhen Hao , Yanfei Yan

We demonstrate a vertical field-effect transistor based on a graphene/MoSe2 van der Waals (vdW) heterostructure. The vdW interface between the graphene and MoSe2 exhibits a Schottky barrier with an ideality factor of around 1.3, suggesting…

Mesoscale and Nanoscale Physics · Physics 2015-07-21 Yohta Sata , Rai Moriya , Sei Morikawa , Naoto Yabuki , Satoru Masubuchi , Tomoki Machida

Phosphorene is a unique single elemental semiconductor with two-dimensional layered structures. In this letter, we study the transistor behavior on mechanically exfoliated few-layer phosphorene with the top-gate. We achieve a high…

Mesoscale and Nanoscale Physics · Physics 2014-05-14 Han Liu , Adam T. Neal , Mengwei Si , Yuchen Du , Peide D. Ye

Two-dimensional (2D) layered materials-based field-effect transistors (FETs) are promising for ultimate scaled electron device applications because of the improved electrostatics to atomically thin body thickness. However, compared with the…

Applied Physics · Physics 2019-10-02 Nan Fang , Kosuke Nagashio

We use numerical simulations to analyze recent experimental measurements of short-channel carbon nanotube field-effect transistors with palladium contacts. We show that the gate strongly modulates the contact properties, an effect that is…

Mesoscale and Nanoscale Physics · Physics 2014-03-18 Aron W. Cummings , François Léonard

In this paper, a transient delayed rising and fall time of $\beta$-Ga$_2$O$_3$ NMs Schottky barrier diodes (SBDs) formed on four different substrates (diamond, Si, sapphire, and polyimide) were measured using a sub-micron second resolution…

Applied Physics · Physics 2022-07-27 Junyu Lai , Jung-Hun Seo

In this paper, we present experimental results and simulation data of an electrostatically doped and therefore voltage-programmable, planar, CMOS-compatible field-effect transistor (FET) structure. This planar device is based on our…

Mesoscale and Nanoscale Physics · Physics 2015-02-17 Tillmann Krauss , Frank Wessely , Udo Schwalke

Advanced logic transistors require gate dielectrics that achieve sub-nanometer equivalent oxide thickness (EOT), suppress leakage, and satisfy three key requirements: (i) compatibility with RMG-like high-temperature processing, (ii)…

For carbon nanotube transistors, as for graphene, the electrical contacts are a key factor limiting device performance. We calculate the device characteristics as a function of nanotube diameter and metal workfunction. Although the on-state…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Vasili Perebeinos , Jerry Tersoff , Wilfried Haensch

We report on the low-frequency electronic noise in (Al$_x$Ga$_{1-x}$)$_2$O$_3$ Schottky barrier diodes. The noise spectral density reveals 1/f dependence, characteristic of the flicker noise, with superimposed Lorentzian bulges at the…

Exploration of new dielectrics with large capacitive coupling is an essential topic in modern electronics when conventional dielectrics suffer from the leakage issue near breakdown limit. To address this looming challenge, we demonstrate…

We find that, under appropriate conditions, electrons can pass a barrier etched across a two dimensional electron gas (2DEG) by field emission from the GaAs/AlGaAs heterojunction into a second, low-density 2DEG formed deep in the substrate.…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 D. H. Cobden , G. Pilling , R. Parthasarathy , P. L. McEuen , I. M. Castleton , E. H. Linfield , D. A. Ritchie , G. A. C. Jones

We have demonstrated that GaN Schottky diodes can be used for high energy (64.8 MeV) proton detection. Such proton beams are used for tumor treatment, for which accurate and radiation resistant detectors are needed. Schottky diodes have…

In the paper the version of the field effect tunnel nano transistor on quantum well is researched, where the control voltage is applied to the barriers surrounding the quantum well, and electron drain comes from the quantum well. Electrons…

Strongly Correlated Electrons · Physics 2015-01-06 Valery A. Zhukov , V. G. Maslov

We propose and analyze a novel dual-gate Spin Field Effect Transistor (SpinFET) with half-metallic ferromagnetic source and drain contacts. The transistor has two gate pads that can be biased independently. It can be switched ON or OFF with…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Wan , M. Cahay , S. Bandyopadhyay

High-performance p-channel transistors are crucial to implementing efficient complementary circuits in wide-bandgap electronics, but progress on such devices has lagged far behind their powerful electron-based counterparts due to the…

The development of thermoelectric devices faces not only the challenge of optimizing the Seebeck coefficient, the electrical and thermal conductivity of the active material, but also further bottlenecks when going from the thermoelectric…

Materials Science · Physics 2018-04-25 Michael Wais , Marco Battiato , Karsten Held

The advent of black phosphorus field-effect transistors (FETs) has brought new possibilities in the study of two-dimensional (2D) electron systems. In a black phosphorus FET, the gate induces highly anisotropic 2D electron and hole gases.…

We study field-effect transistors realized from VO2 nanobeams with HfO2 as the gate dielectric. When heated up from low to high temperatures, VO2 undergoes an insulator-to-metal transition. We observe a change in conductance (~ 6 percent)…

Strongly Correlated Electrons · Physics 2011-09-30 Shamashis Sengupta , Kevin Wang , Kai Liu , Ajay K. Bhat , Sajal Dhara , Junqiao Wu , Mandar M. Deshmukh