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We propose a superconducting diode device comprising a central superconducting film flanked by two wires carrying an applied DC bias, suitably chosen so as to generate different asymmetric field profiles. Through numerical simulations of…

Superconductivity · Physics 2024-05-24 Leonardo Rodrigues Cadorim , Edson Sardella , Clécio Clemente de Souza Silva

Superconducting diodes, characterized by the nonreciprocal supercurrent flow, have gained significant attention for their potential in dissipationless electronics. This study presents a superconducting quantum interference device (SQUID)…

Superconductivity · Physics 2025-02-28 Xingjun Wu , Ji-Yin Wang , Haitian Su , Shili Yan , Dong Pan , Jianhua Zhao , Po Zhang , H. Q. Xu

The critical current of a superconductor can depend on the direction of current flow due to magnetochiral anisotropy when both inversion and time-reversal symmetry are broken, an effect known as the superconducting (SC) diode effect. Here,…

Mesoscale and Nanoscale Physics · Physics 2022-09-21 Henry F. Legg , Daniel Loss , Jelena Klinovaja

Two-dimensional (2D) superconductors, characterized by their inherent quantum confinement, strong spin-orbit coupling, and diverse forms of symmetry breaking, provide an ideal platform for exploring novel quantum transport phenomena. This…

Superconductivity · Physics 2026-03-03 Xingrong Ren , Huiqing Ye , Tian Le

In the absence of time-reversal invariance, metals without inversion symmetry may exhibit nonreciprocal charge transport -- a magnetochiral anisotropy that manifests as unequal electrical resistance for opposite current flow directions. If…

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…

The parity breaking gives rise to rich superconducting properties through the admixture of even and odd-parity Cooper pairs. A new light has been shed on parity-breaking superconductors by recent observations of nonreciprocal responses such…

Superconductivity · Physics 2022-04-06 Hikaru Watanabe , Akito Daido , Youichi Yanase

The study of non-reciprocal phenomena has long captivated interest in both Hermitian and non-Hermitian systems. The superconducting diode effect (SDE) is a non-reciprocal phenomenon characterized by unequal critical charge supercurrents…

Superconductivity · Physics 2025-08-15 Junjie Qi , Ming Lu , Jie Liu , Chui-Zhen Chen , X. C. Xie

It was recently experimentally proved that the superconducting counterpart of a diode, i.e., a device that realizes nonreciprocal Cooper pairs transport, can be realized by breaking the spatial and time-reversal symmetry of a system…

Superconductivity · Physics 2023-09-13 Angelo Greco , Quentin Pichard , Francesco Giazotto

The superconducting diode is an emergent device that juggles between the Cooper-paired state and the resistive state with unpaired quasiparticles. Here, we report a quantum version of the superconducting diode, which operates solely between…

Superconductivity · Physics 2025-09-30 Heng Wang , Yuying Zhu , Zhonghua Bai , Zhaozheng Lyu , Jiangang Yang , Lin Zhao , X. J. Zhou , Genda Gu , Qi-Kun Xue , Ding Zhang

Nonreciprocal transport refers to charge transfer processes that are sensitive to the bias polarity. Until recently, nonreciprocal transport was studied only in dissipative systems, where the nonreciprocal quantity is the resistance. Recent…

Superconducting thin-films are central to the operation of many kinds of quantum sensors and quantum computing devices: Kinetic Inductance Detectors (KIDs), Travelling-Wave Parametric Amplifiers (TWPAs), Qubits, and Spin-based Quantum…

Superconductivity · Physics 2026-04-15 Songyuan Zhao , Stafford Withington , David J. Goldie , Chris N. Thomas

Superconductors (SCs) with nontrivial topological band structures in the normal state have been discovered recently in bulk materials. When such SCs are made into thin films, quantum tunneling and Cooper pairing take place between the…

Superconductivity · Physics 2023-12-19 Xi Luo , Yu-Ge Chen , Ziqiang Wang , Yue Yu

Supercurrent field-effect transistors made from thin metallic films are a promising option for next-generation high-performance computation platforms. Despite extensive research, there is still no complete quantitative microscopic…

Superconductivity · Physics 2025-05-29 Alessio Zaccone , Giovanni A. Ummarino , Alessandro Braggio , Francesco Giazotto

A superconductor with broken time reversal and inversion symmetry may exhibit nonreciprocal charge transport, including a nonreciprocal critical current, also known as superconducting diode effect. We report an intrinsic superconducting…

Superconductivity · Physics 2023-03-30 Robert Kealhofer , Hanbyeol Jeong , Arman Rashidi , Leon Balents , Susanne Stemmer

Superconducting diodes, characterized by nonreciprocal supercurrent transport, offer transformative opportunities for ultra-low-power circuits. However, achieving reliable operation at temperatures above liquid nitrogen remains a major…

We study the superconducting diode effect (SDE) in a diffusive superconductor - normal metal (SN) bilayer subjected to an in-plane magnetic field. The supercurrent flows along the layers, perpendicular to the field. The SDE, manifested as…

Superconductivity · Physics 2026-04-13 Yuriy A. Dmitrievtsev , Yakov V. Fominov

The significance of the superconducting diode effect lies in its potential application as a fundamental component in the development of next-generation superconducting circuit technology. The stringent operating conditions at low…

Mesoscale and Nanoscale Physics · Physics 2024-02-27 Yiwen Zhang , Jiliang Cai , Peng Dong , Jiadian He , Yifan Ding , Jinghui Wang , Xiang Zhou , Kecheng Cao , Yueshen Wu , Jun Li

The superconducting diode effect (SDE) refers to the nonreciprocity of superconducting critical currents for the metal-superconductor transition. Generally, the SDE has a positive and a negative critical current $j_{c\pm}$ corresponding to…

Superconductivity · Physics 2025-01-03 Yu-Chen Zhuang , Qing-Feng Sun

Nonreciprocal transport is generally observed in superconductors in which time reversal and inversion symmetries are simultaneously broken. This effect, which may become one of the backbones for future superconducting electronics, arises…