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The current work explores a geometrically engineered dual gate GaAs nanowire FET with state of the art miniaturized dimensions for high performance charge qubit operation at room temperature. Relevant gate voltages in such device can create…

介观与纳米尺度物理 · 物理学 2023-04-24 Nilayan Paul , Basudev Nag Chowdhury , Sanatan Chattopadhyay

Proposals for quantum information applications are frequently based on the coherent manipulation of spins confined to quantum dots. For these applications, p-type III-V material systems promise a reduction of the hyperfine interaction while…

介观与纳米尺度物理 · 物理学 2021-07-07 Sven Dorsch , In-Pyo Yeo , Sebastian Lehmann , Kimberly Dick , Claes Thelander , Adam Burke

Two-dimensional materials are considered for future quantum devices and are usually produced by extensive methods like molecular beam epitaxy. We report on the fabrication of field-effect transistors using individual ultra-thin lead sulfide…

材料科学 · 物理学 2015-07-20 Sedat Dogan , Thomas Bielewicz , Yuxue Cai , Christian Klinke

Rapid and reproducible assembly of aligned nanostructures on a wafer-scale is a crucial, yet one of the most challenging tasks in the incorporation of nanowires into integrated circuits. We present the synthesis of a periodic nanochannel…

Low-dimensional photoconductors have extraordinarily high photoresponse and gain, which can be modulated by gate voltages as shown in literature. However, the physics of gate modulation remains elusive. In this work, we investigated the…

应用物理 · 物理学 2024-04-03 Yinchu Shen , Jiajing He , Yang Xu , Kaiyou Wang , Yaping Dan

In this paper, we have presented the impact of the gate leakage through thin gate dielectrics (SiO2 and high-\k{appa} gate dielectric) on the subthreshold characteristics of the tunnel field effect transistors (TFET) for a low operating…

介观与纳米尺度物理 · 物理学 2014-06-06 Poornendu Chaturvedi , M. Jagadesh Kumar

We demonstrate experimentally non-equilibrium transport in unipolar quasi-1D hot electron devices reaching ballistic limit. The devices are realized with heterostructure engineering in nanowires to obtain dopant- and dislocation-free…

介观与纳米尺度物理 · 物理学 2024-07-04 M. Kumar , A. Nowzari , A. R. Persson , S. Jeppesen , A. Wacker , G. Bastard , R. Wallenberg , F. Capasso , V. F. Maisi , L. Samuelson

We demonstrate a top-down fabricated reconfigurable field effect transistor (RFET) based on a silicon nanowire that can be electrostatically programmed to p- and n-configuration. The device unites a high symmetry of transfer…

Achieving high crystalline quality Ge$_{1-x}$Sn$_{x}$ semiconductors at Sn content exceeding 10\% is quintessential to implementing the long sought-after silicon-compatible mid-infrared photonics. Herein, by using sub-20 nm Ge nanowires as…

It was recently discovered that supercurrents flowing through thin superconducting nanowires can be quenched by a gate voltage. This gate control of supercurrents, known as the GCS effect, could enable superconducting transistor logic.…

介观与纳米尺度物理 · 物理学 2025-10-13 P. J. Scheidegger , K. J. Knapp , U. Ognjanovic , L. Ruf , S. Diesch , E. Scheer , A. Di Bernardo , C. L. Degen

The performance of graphene-based transistors is often limited by the large electrical resistance across the metal-graphene contact. We report an approach to achieve ultra-low resistance metal contacts to graphene transistors. Through a…

介观与纳米尺度物理 · 物理学 2013-12-17 Wei Sun Leong , Hao Gong , John T. L. Thong

We demonstrate the physical principles for the construction of a nanometer sized magnetoresistance device based on the Aharonov-Bohm effect. The proposed device is made of a short single-walled carbon nanotube (SWCNT) placed on a substrate…

材料科学 · 物理学 2009-11-10 Oded Hod , Eran Rabani , Roi Baer

We present overlapping top gate electrodes for the formation of gate defined lateral junctions in semiconducting layers as an alternative to the back gate/top gate combination and to the split gate configuration. The optical lithography…

介观与纳米尺度物理 · 物理学 2024-04-11 Christopher Fuchs , Lena Fürst , Hartmut Buhmann , Johannes Kleinlein , Laurens W. Molenkamp

We have implemented a Walsh-Hadamard gate, which performs a quantum Fourier transform, in a superconducting qutrit. The qutrit is encoded in the lowest three energy levels of a capacitively shunted flux device, operated at the optimal…

量子物理 · 物理学 2020-11-17 M. A. Yurtalan , J. Shi , M. Kononenko , A. Lupascu , S. Ashhab

We report a method to pattern monolayer graphene nanoconstriction field effect transistors (NCFETs) with critical dimensions below 10 nm. NCFET fabrication is enabled by the use of feedback controlled electromigration (FCE) to form a…

We present an analytical device model for a field-effect transistor based on a heterostructure which consists of an array of nanoribbons clad between the highly conducting substrate (the back gate) and the top gate controlling the…

介观与纳米尺度物理 · 物理学 2015-05-13 V. Ryzhii , M. Ryzhii , A. Satou , T. Otsuji

High-performance $n$-type organic field-effect transistors were developed with ionic-liquid gates and N,N$^"$-bis(n-alkyl)-(1,7 and 1,6)-dicyanoperylene-3,4:9,10-bis(dicarboximide)s single-crystals. Transport measurements show that these…

材料科学 · 物理学 2015-05-20 S. Ono , N. Minder , Z. Chen , A. Facchetti , A. F. Morpurgo

In this paper we show spin dependent transport experiments in nanoconstrictions ranging from 30 to 200nm. These nanoconstrictions were fabricated combining electron beam lithography and thin film deposition techniques. Two types of…

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 report the detection of a gate-tunable kinetic inductance in a hybrid InAs/Al nanowire. For this purpose, we have embedded the nanowire into a quarter-wave coplanar waveguide resonator and measured the resonance frequency of the circuit.…