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The superconducting diode effect (SDE), characterized by a nonreciprocal critical current in superconductors, has recently been observed in strongly correlated electron systems and near quantum criticality, pointing to unconventional…

Superconductivity · Physics 2026-05-04 Kyohei Nakamura , Youichi Yanase

Superconducting quantum circuits are sensitive to their electrostatic environment: uncontrolled charges accumulating on the electrodes of a Josephson junction shift the energy levels of a qubit, perturbing its operation and restricting…

The effect of electrostatic gating on metallic elemental superconductors was recently demonstrated in terms of modulation of the switching current and control of the current phase relation in superconducting quantum interferometers. The…

Superconductivity · Physics 2021-10-28 Claudio Puglia , Giorgio De Simoni , Francesco Giazotto

A tunneling transistor without heterojunction as a theoretical design, or more precisely controlled electron current transmission by barrier potential, is under consideration. The electrons from the conduction band of the source tunnel…

Applied Physics · Physics 2023-04-27 Pawel Pfeffer

The interplay of quantum fluctuations and dissipation in chains of mesoscopic superconducting grains is analyzed, and the results are also applied to nanowires. It is shown that in 1-d arrays of resistively shunted Josephson junctions, the…

Superconductivity · Physics 2009-11-11 Gil Refael , Eugene Demler , Yuval Oreg , Daniel S. Fisher

A Josephson diode passes current with zero resistance in one direction but is resistive in the other direction. While such an effect has been observed in several platforms, a large and tunable Josephson diode effect has been rare. Here we…

In this work we demonstrate a new Field Effect Transistor device concept based on hydrogen-terminated diamond (H-diamond) that operates in an Accumulation Channel rather than Transfer Doping regime. Our FET devices demonstrate both extreme…

Mesoscale and Nanoscale Physics · Physics 2025-01-14 Chunlin Qu , Isha Maini , Qing Guo , Alastair Stacey , David A. J. Moran

A heterojunction Mott field effect transistor (FET) is proposed that consists of an epitaxial channel material that exhibits an electron-correlation-induced Mott metal-to-insulator transition. The Mott material is remotely (modulation)…

Materials Science · Physics 2011-10-20 Junwoo Son , Siddharth Rajan , Susanne Stemmer , S. James Allen

Semiconducting diode with nonreciprocal transport effect underlies the cornerstone of contemporary integrated circuits (ICs) technology. Due to isotropic superconducting properties and the lack of breaking of inversion symmetry for…

In this paper we have developed a two dimensional (2D) analytical model for surface potential and drain current for a long channel Dual Material Gate (DMG) Silicon-on-Insulator (SOI) Tunneling Field Effect Transistor (TFET). This model…

Mesoscale and Nanoscale Physics · Physics 2014-05-27 Rajat Vishnoi , M. Jagadesh Kumar

Josephson junctions (JJs), devices consisting of two superconductors separated by a barrier, are of great technological importance, being a cornerstone of quantum information processing. Classical understanding of…

Single molecule transistors (SMTs) are currently attracting enormous attention as possible quantum information processing devices. An intrinsic limitation to the prospects of these however is associated to the presence of a small number of…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 C. B. Winkelmann , N. Roch , W. Wernsdorfer , V. Bouchiat , F. Balestro

We present the electron tunneling transport and its magnetic field modulation of a superconducting (SC) Josephson junction with a barrier of single ferromagnetic (FM) Kitaev layer. We find that at H = 0, the Josephson current IS displays…

Strongly Correlated Electrons · Physics 2020-06-05 Shiqing Jia , Yamin Quan , Hai-Qing Lin , Liang-Jian Zou

The Josephson diode (JD) is a non-reciprocal circuit element that supports a larger critical current in one direction compared to the other. This effect has gained a growing interest because of promising applications in superconducting…

While extensively studied in normal metals, semimetals and semiconductors, the superconducting (SC) proximity effect remains elusive in the emerging field of flat-band systems. In this study we probe proximity-induced superconductivity in…

We propose a new type of a transition edge sensor based on an Al/AlOx/Ti/AlOx/Al superconductor - insulator - superconductor - insulator - superconductor (SIS'IS) structure. It exhibits sharp dependence of zero bias resistance on…

Mesoscale and Nanoscale Physics · Physics 2014-09-03 Timothé Faivre , Dmitry Golubev , Jukka P. Pekola

Integrated circuits (ICs) that can operate at high temperature have a wide variety of applications in the fields of automotive, aerospace, space exploration, and deep-well drilling. Conventional silicon-based complementary…

Applied Physics · Physics 2021-06-21 Mitsuaki Kaneko , Masashi Nakajima , Qimin Jin , Tsunenobu Kimoto

Ferroelectric field-effect transistors employ a ferroelectric material as a gate insulator, the polarization state of which can be detected using the channel conductance of the device. As a result, the devices are of potential to use in…

The discovery that a gate electrode suppresses the supercurrent in purely metallic systems is missing a complete physical understanding of the mechanisms at play. We here study the origin of this reduction in a Superconductor-Normal…

Processes that lead to the critical-current suppression and change of impedance of a superconductor under the application of an external voltage is an active area of research, especially due to various possible technological applications.…

Superconductivity · Physics 2022-04-25 Giacomo Catto , Wei Liu , Suman Kundu , Valtteri Lahtinen , Visa Vesterinen , Mikko Möttönen