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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

We study the quantization of the supercurrent and conductance of a superconducting quantum point contact (SQPC) in a superconductor-two dimensional electrongas-superconductor (S-2DEG-S) Josephson junction with a split gate. The supercurrent…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. Bauch , E. Huerfeld , V. M. Krasnov , P. Delsing , H. Takayanagi , T. Akazaki

Superconductors and semiconductors are crucial platforms in the field of quantum computing. They can be combined to hybrids, bringing together physical properties that enable the discovery of new emergent phenomena and provide novel…

The properties of the known superconductors can be explained with the correlations dominated superconducting mechanism (CSM). The correlations have the spin correlation, the charge correlation and the spin-charge correlation, and their…

General Physics · Physics 2008-10-16 Tian De Cao

Entrainment of limit cycles by chaos [1] is discovered numerically through specially designed unidirectional coupling of two glow discharge-semiconductor systems. By utilizing the auxiliary system approach [2], it is verified that the…

Chaotic Dynamics · Physics 2014-06-18 Marat Akhmet , Ismail Rafatov , Mehmet Onur Fen

A novel method for extracting threshold voltage and substrate effect parameters of MOSFETs with constant current bias at all levels of inversion is presented. This generalized constant-current (GCC) method exploits the charge-based model of…

Applied Physics · Physics 2020-09-02 Matthias Bucher , Nikolaos Makris , Loukas Chevas

I argue that the conventional BCS-London theory of superconductivity does not explain the most fundamental property of superconductors, the Meissner effect: how is the Meissner current generated, and how is it able to defy Faraday's law?…

Superconductivity · Physics 2010-01-13 J. E. Hirsch

Electronic transport through nanostructures is greatly affected by the presence of superconducting leads. If the interface between the nanostructure and the superconductors is sufficiently transparent, a dissipationless current…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Pablo Jarillo-Herrero , Jorden A. van Dam , Leo P. Kouwenhoven

Negative differential conductance (NDC) manifests as a significant characteristic of various underlying physics and transport processes in hybrid superconducting devices. In this work, we report the observation of gate-tunable NDC outside…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Mingli Liu , Dong Pan , Tian Le , Jiangbo He , Zhongmou Jia , Shang Zhu , Guang Yang , Zhaozheng Lyu , Guangtong Liu , Jie Shen , Jianhua Zhao , Li Lu , Fanming Qu

Magnetic instability in gapless superconductors still remains as a puzzle. In this article, we point out that the instability might be caused by using BCS theory in mean-field approximation, where the phase fluctuation has been neglected.…

High Energy Physics - Phenomenology · Physics 2009-11-11 Mei Huang

Creating a transmon qubit using semiconductor-superconductor hybrid materials not only provides electrostatic control of the qubit frequency, it also allows parts of the circuit to be electrically connected and disconnected in situ by…

Mesoscale and Nanoscale Physics · Physics 2020-02-12 A. Kringhøj , T. W. Larsen , B. van Heck , D. Sabonis , O. Erlandsson , I. Petkovic , D. I. Pikulin , P. Krogstrup , K. D. Petersson , C. M. Marcus

Superconducting diodes are a recently-discovered quantum analogueue of classical diodes. The superconducting diode effect relies on the breaking of both time-reversal and inversion symmetry. As a result, the critical current of a…

In semiconductor electronics, the field-effect refers to the control of electrical conductivity in nanoscale devices, which underpins the field-effect transistor, one of the cornerstones of present-day semiconductor technology. The effect…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 Ilia Golokolenov , Andrew Guthrie , Sergey Kafanov , Yuri Pashkin , Viktor Tsepelin

Ionic gating is a very popular tool to investigate and control the electric charge transport and electronic ground state in a wide variety of different materials. This is due to its capability to induce large modulations of the surface…

Superconductivity · Physics 2021-05-27 Erik Piatti

Electrostatic gating confines and controls the transport of electrons in integrated circuits. Magnons, the quanta of spin waves of the magnetic order, are promising alternative information carriers, but difficult to gate. Here we report…

Mesoscale and Nanoscale Physics · Physics 2022-09-21 Tao Yu , Gerrit E. W. Bauer

Manipulating the superconducting states of high-T_c cuprate superconductors in an efficient and reliable way is of great importance for their applications in next-generation electronics. Traditional methods are mostly based on a…

Since the first demonstration of coherent control of a quantum state of a superconducting charge qubit a variety of Josephson-junction-based qubits have been implemented with remarkable progress in coherence time and read-out schemes.…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 T. Yamamoto , Yu. A. Pashkin , O. Astafiev , Y. Nakamura , J. S. Tsai

We demonstrate the ability of an epitaxial semiconductor-superconductor nanowire to serve as a field-effect switch to tune a superconducting cavity. Two superconducting gatemon qubits are coupled to the cavity, which acts as a quantum bus.…

Mesoscale and Nanoscale Physics · Physics 2019-02-22 L. Casparis , N. J. Pearson , A. Kringhøj , T. W. Larsen , F. Kuemmeth , J. Nygård , P. Krogstrup , K. D. Petersson , C. M. Marcus

VSG control has emerged as a crucial technology for integrating renewable energy sources. However, renewable energy have limited tolerance to overcurrent, necessitating the implementation of current limiting (CL)strategies to mitigate the…

Systems and Control · Electrical Eng. & Systems 2024-09-06 Yifan Zhao , Zhiqian Zhang , Ziyang Xu , Zhenbin Zhang , Jose Rodriguez

Integrating grid-forming converters (GFMCs) into grid-following converter (GFLC)-dominated power systems enhances the grid strength, but GFMCs' current-limiting characteristic triggers dynamic switching between constant voltage control…

Systems and Control · Electrical Eng. & Systems 2026-04-22 Bingfang Li , Songhao Yang , Pu Cheng , Zhiguo Hao