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This paper presents a self-consistent numerical model for calculating the charge profile and gate capacitance and therefore obtaining C-V characterization for a gate-all-around graded nanowire MOSFET with a high mobility axially graded…

An evaluation of the gate capacitance of a field-effect transitor (FET) whose channel length and width are several ten nanometer, is a key point for sensors applications. However, experimental and precise evaluation of capacitance in the aF…

Mesoscale and Nanoscale Physics · Physics 2011-09-16 Nicolas Clement , Katsuhiko Nishiguchi , Akira Fujiwara , Dominique Vuillaume

In a family of experiments carried on all-metallic supercurrent nano-transistors a surprising gating effect has been recently shown. These include the full suppression of the critical supercurrent, the increase of quasiparticle population,…

Mesoscale and Nanoscale Physics · Physics 2021-01-26 M. Rocci , G. De Simoni , C. Puglia , D. Degli Esposti , E. Strambini , V. Zannier , L. Sorba , F. Giazotto

A vertical partial gate carbon nanotube (CNT) field-effect transistor (FET), which is amenable to the vertical CNT growth process and offers the potential for a parallel CNT array channel, is simulated using a self-consistent atomistic…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Youngki Yoon , James Fodor , Jing Guo

Nano-membrane tri-gate beta-gallium oxide (\b{eta}-Ga2O3) field-effect transistors (FETs) on SiO2/Si substrate fabricated via exfoliation have been demonstrated for the first time. By employing electron beam lithography, the minimum-sized…

Applied Physics · Physics 2022-01-05 Hagyoul Bae , Tae Joon Park , Jinhyun Noh , Wonil Chung , Mengwei Si , Shriram Ramanathan , Peide D. Ye

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

We have developed a technique that dramatically reduces the contact resistances and depletes a shunting channel between the contacts outside the Hall bar in ultra-high mobility SiGe/Si/SiGe heterostructures. It involves the creation of…

Mesoscale and Nanoscale Physics · Physics 2024-10-10 M. Yu. Melnikov , A. A. Shashkin , S. -H. Huang , C. W. Liu , S. V. Kravchenko

The application of a gate voltage to control the superconducting current flowing through a nanoscale superconducting constriction, named as gate-controlled supercurrent (GCS), has raised great interest for fundamental and technological…

We demonstrate a tunnel field effect transistor based on a lateral heterostructure patterned from an $\mathrm{LaAlO_3/SrTiO_3}$ electron gas. Charge is injected by tunneling from the $\mathrm{LaAlO_3}$/$\mathrm{SrTiO_3}$ contacts and the…

Mesoscale and Nanoscale Physics · Physics 2019-06-19 A. Müller , C. Şahin , M. Z. Minhas , M. E. Flatté , G. Schmidt

We report on the experimental demonstration and electrical characterization of N = 7 armchair graphene nanoribbon (7-AGNR) field effect transistors. The back-gated transistors are fabricated from atomically precise and highly aligned…

Mesoscale and Nanoscale Physics · Physics 2018-03-21 Vikram Passi , Amit Gahoi , Boris V. Senkovskiy , Danny Haberer , Felix R. Fischer , Alexander Grüneis , Max C. Lemme

Fast cryogenic switches with ultra-low power dissipation are highly sought-after for control electronics of quantum computers, space applications and next generation logic circuits. However, existing high-frequency switches are often bulky,…

Superconductivity · Physics 2021-06-08 M. F. Ritter , A. Fuhrer , D. Z. Haxell , S. Hart , P. Gumann , H. Riel , F. Nichele

Using a block of three separated solid elements, a thermal source and drain together with a gate made of an insulator-metal transition material exchanging near-field thermal radiation, we introduce a nanoscale analog of a field-effect…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Philippe Ben-Abdallah , Svend-Age Biehs

Understanding of the electrical contact properties of semiconductor nanowire (NW) field effect transistors (FETs) plays a crucial role in employing semiconducting NWs as building blocks for future nanoelectronic devices and in the study of…

Mesoscale and Nanoscale Physics · Physics 2016-05-30 Dingxun Fan , N Kang , Sepideh Gorji Ghalamestani , Kimberly A Dick , H Q Xu

We employ noise spectroscopy and transconductance measurements to establish the optimal regimes of operation for our fabricated silicon nanowire field-effect transistors (Si NW FETs) sensors. A strong coupling between the liquid gate and…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Sergii Pud , Jing Li , Volodymyr Sibiliev , Mykhaylo Petrychuk , Valery Kovalenko , Andreas Offenhäusser , Svetlana Vitusevich

We use the strongly temperature-dependent ionic mobility in polymer electrolytes to 'freeze in' specific ionic charge environments around a nanowire using a local wrap-gate geometry. This enables us to set both the threshold voltage for a…

Mesoscale and Nanoscale Physics · Physics 2014-11-12 Sofia Fahlvik Svensson , Adam M. Burke , Damon J. Carrad , Martin Leijnse , Heiner Linke , Adam P. Micolich

The recent development of the superlattice nanowire pattern transfer (SNAP) technique allows for the fabrication of arrays of nanowires at a diameter, pitch, aspect ratio, and regularity beyond competing approaches. Here, we report the…

Materials Science · Physics 2007-05-23 E. Johnston-Halperin , R. A. Beckman , N. A. Melosh , Y. Luo , J. E. Green , J. R. Heath

We propose a simple analytical model of a metal-oxide-semiconductor field-effect transistor with a lateral resonant gate based on the coupled electromechanical equations, which are self-consistently solved in time. All charge densities…

Recent measurements on ultra-thin body Negative Capacitance Field Effect Transistors have shown subthreshold behaviors that are not expected in a classical MOSFET. Specifically, subthreshold swing was found to decrease with increased gate…

Organic semiconductors are usually not thought to show outstanding performance in highly-integrated, sub 100 nm transistors. Consequently, single-crystalline materials such as SWCNTs, MoS2 or inorganic semiconductors are the material of…

Applied Physics · Physics 2019-10-02 Jakob Lenz , Fabio del Giudice , Fabian R. Geisenhof , Felix Winterer , R. Thomas Weitz

We report on the fabrication and measurement of nanoscale devices based on bilayer graphene sandwiched between hexagonal boron nitride bottom and top gate dielectrics. The top gates are patterned such that constrictions and islands can be…

Mesoscale and Nanoscale Physics · Physics 2013-04-10 Augustinus , M. Goossens , Stefanie C. M. Driessen , Tim A. Baart , Kenji Watanabe , Takashi Taniguchi , Lieven M. K. Vandersypen