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Using first-principle electronic structure calculations, we show a metal- semiconductor transition of a metallic graphene nanoribbon with zigzag edges induced by substitutional doping of Nitrogen or Boron atoms at the edges. A field effect…

Materials Science · Physics 2009-11-13 Bing Huang , Qimin Yan , Gang Zhou , Jian Wu , Feng Liu , Bing-Lin Gu , Wenhui Duan

Funtionalized pentacene, 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-pentacene), field-effect transistors(FET's) were made by thermal evaporation or solution deposition method and the mobility was measured as a function of temperature…

Strongly Correlated Electrons · Physics 2007-05-23 Jin Gyu Park , Relja Vasic , James S. Brooks , John E. Anthony

In the recent years it has been possible to achieve diode-like, non-reciprocal current-voltage response in Josephson junctions, despite the intrinsic symmetry of the Josephson effect itself. This is typically achieved by incorporating…

Superconductivity · Physics 2026-05-19 Debashree Nayak , Dimple Rani , Prasanjit Samal , Kartik Senapati

Aluminum-based Josephson junctions are currently the main sources of nonlinearity for control and manipulation of superconducting qubits. A phase-slip junction, the dual of a Josephson junction, provides an alternative source of…

Superconductivity · Physics 2026-02-09 Cheeranjeev Purmessur , Kaicheung Chow , Bernard van Heck , Angela Kou

Josephson junction transistors and 50-junction arrays with linear junction dimensions from 200 nm down to 70 nm were fabricated from standard Nb/AlOx/Nb trilayers. The fabrication process includes electron beam lithography, dry etching,…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 R. Dolata , H. Scherer , A. B. Zorin , J. Niemeyer

We describe an experiment in superconductivity suitable for an advanced undergraduate laboratory. Point-contact spectroscopy is performed by measuring the differential conductance between an electrochemically etched gold tip and a 100-nm…

Physics Education · Physics 2015-06-03 L. Janson , M. Klein , H. Lewis , A. Lucas , A. Marantan , K. Luna

A superconductor-normal metal-superconductor (SNS) transistor based on superconducting microcoolers is presented. The proposed 4-terminal device consists of a long SNS Josephson junction whose N region is in addition symmetrically connected…

Superconductivity · Physics 2008-07-12 F. Giazotto , F. Taddei , T. T. Heikkila , R. Fazio , F. Beltram

$\beta$-Ga$_{2}$O$_{3}$ nanomembranes, obtained by ion-beam-assisted exfoliation, are used in the fabrication of simple metal-semiconductor-metal (MSM) structures, that are tested as photodetectors (PD) and field-effect transistors (FET).…

Ferroelectric semiconductor field effect transistors (FeSmFETs), which employ ferroelectric semiconducting thin crystals of {\alpha}-In2Se3 as the channel material as opposed to the gate dielectric in conventional ferroelectric FETs…

Correlating structure with electronic functionality is central to the engineering of quantum materials and devices whose properties depend sensitively on disorder. Transmission electron microscopy (TEM) offers high spatial resolution…

We report on fabrication of novel field-effect transistors (FETs) based on transition metal dichalcogenides. The unique structure of single crystals of these layered inorganic semiconductors enables fabrication of FETs with intrinsically…

Materials Science · Physics 2009-11-10 V. Podzorov , M. E. Gershenson , Ch. Kloc , R. Zeis , E. Bucher

Electrostatically Formed Nanowire (EFN) based transistors have been suggested in the past as gas sensing devices. These transistors are multiple gate transistors in which the source to drain conduction path is determined by the bias applied…

Emerging Technologies · Computer Science 2015-06-02 Gideon Segev , Iddo Amit , Andrey Godkin , Alex Henning , Yossi Rosenwaks

We report optically as well as electronically controlled, bio-electronic field-effect transistor (FET) based on the hybrid film of a photo-active purple membrane and electronically conducting single-walled carbon nanotubes (SWNTs). Two…

Applied Physics · Physics 2024-09-05 Vikram Bakaraju , Senthil Prasad , Brijesh Meena , Harsh Chaturvedi

With a large portfolio of elemental quantum components, superconducting quantum circuits have contributed to dramatic advances in microwave quantum optics. Of these elements, quantum-limited parametric amplifiers have proven to be essential…

The phenomenon of non-reciprocal critical current in a Josephson device, termed the Josephson diode effect, has garnered much recent interest. Realization of the diode effect requires inversion symmetry breaking, typically obtained by…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Mohit Gupta , Gino V. Graziano , Mihir Pendharkar , Jason T. Dong , Connor P. Dempsey , Chris Palmstrøm , Vlad S. Pribiag

An important consideration in miniaturizing transistors is maximizing the coupling between the gate and the semiconductor channel. A nanowire with a coaxial metal gate provides optimal gate-channel coupling, but has only been realized for…

Mesoscale and Nanoscale Physics · Physics 2012-01-19 Kristian Storm , Gustav Nylund , Lars Samuelson , Adam P. Micolich

We argue that twisted graphene nanoribbons subjected to a transverse electric field can operate as a variety of nanoelectronic devices, such as tunable tunnel diodes with current-voltage characteristics controlled by the transverse field.…

Mesoscale and Nanoscale Physics · Physics 2018-12-14 Marta Saiz-Bretín , Andrey V. Malyshev , Francisco Domínguez-Adame

Scalable quantum computing currently requires a large array of qubit integration, but present two-dimensional interconnects face challenges such as wiring congestion, electromagnetic interference, and limited cryogenic space. To overcome…

Ionic gating is a powerful technique for tuning the physical properties of a material via electric field-induced charge doping, but is prone to introduce extrinsic disorder and undesired electrochemical modifications in the gated material…

Improving the coherence of superconducting qubits is a fundamental step towards the realization of fault-tolerant quantum computation. However, coherence times of quantum circuits made from conventional aluminium-based Josephson junctions…