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We theoretically propose a mechanism to realize the superconducting diode effect (SDE): The current can generate a magnetic field, affecting the magnetic moment of magnetic impurity. When the connection region of the Josephson junction is…

Superconductivity · Physics 2025-09-05 Yu-Fei Sun , Yue Mao , Qing-Feng Sun

We study superconductor/normal region/superconductor (S|N|S) Josephson junction formed using superconductors with d, d + id', and d + is superconducting pairings. We show that the quality factor of the Josephson diode effect and its sign…

Superconductivity · Physics 2024-06-18 Hamed Vakili , Moaz Ali , Alexey A. Kovalev

We investigate the Josephson diode effect (JDE) within quasi-2D planar systems featuring the $C_{1v}$ spin-orbit coupling (SOC) and Zeeman fields in the normal region. Our analysis is based on experimental observations conducted on…

Superconductivity · Physics 2024-08-29 Gongqi Wang , Jianjian Miao , Wei-Qiang Chen

Two superconductors coupled by a weak link support an equilibrium Josephson electrical current which depends on the phase difference $\varphi$ between the superconducting condensates [1]. Yet, when a temperature gradient is imposed across…

Mesoscale and Nanoscale Physics · Physics 2017-05-25 Antonio Fornieri , Giuliano Timossi , Pauli Virtanen , Paolo Solinas , Francesco Giazotto

Superconducting tunnel junctions constitute the units of superconducting quantum circuits and are massively used both for quantum sensing and quantum computation. In previous works, we predicted the existence of a nonlinear thermoelectric…

Mesoscale and Nanoscale Physics · Physics 2020-10-21 G. Marchegiani , A. Braggio , F. 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

Mesoscopic superconducting-normal-metal-superconducting (S-N-S) junctions with a large separation between the superconducting electrodes (i.e. wide junctions) exhibit nonequilibrium supercurrents, even at temperatures for which the…

Superconductivity · Physics 2009-10-31 Nathan Argaman

The Josephson diode effect (JDE) has attracted significant attention for enabling directional, dissipationless supercurrents, positioning Josephson junctions as promising building blocks for next-generation quantum devices. Hybrid…

Mesoscale and Nanoscale Physics · Physics 2026-04-28 Ardamon Sten , Sudeep Kumar Ghosh

Supercurrent diodes are nonreciprocal electronic elements whose switching current depends on their flow direction. Recently, a variety of composite systems combining different materials and engineered asymmetric superconducting devices have…

In analogy to conventional semiconductor diodes, the Josephson diode exhibits superconducting properties that are asymmetric in applied bias. The effect has been investigated in number of systems recently, and requires a combination of…

In a SQUID tuned away from half-integer flux (in units of the superconducting flux quantum), the concurrence of multiple Josephson harmonics and an asymmetry between the junctions leads to the Josephson diode effect -- a nonreciprocal…

Mesoscale and Nanoscale Physics · Physics 2025-11-18 M. Houzet , T. Vakhtel , J. S. Meyer

When both inversion and time-reversal symmetries are broken, the critical current of a superconductor can be nonreciprocal. In this work we show that in certain classes of two-dimensional superconductors with antisymmetric spin-orbit…

Superconductivity · Physics 2022-05-11 Noah F. Q. Yuan , Liang Fu

The superconducting diode effect (SDE) allows polarity-dependent critical currents when time-reversal and current-inverting spatial symmetries are broken. Superconducting diodes show promise for applications, but inversion asymmetry is…

The superconducting diode effect (SDE) is a magneto-electric phenomenon where an external magnetic field imparts a non-zero center-of-mass momentum to Cooper pairs, either facilitating or hindering the flow of supercurrent depending on its…

Superconductivity · Physics 2024-10-18 Benedikt Scharf , Denis Kochan , Alex Matos-Abiague

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…

We unveil a mechanism that enables a robust supercurrent diode effect in Josephson junctions based on multiband superconductors. We predict that interband pairing can significantly amplifies this effect, even under weak spin-orbit coupling…

Superconductivity · Physics 2025-10-20 Jiong Mei , Shengshan Qin , Jiangping Hu

The Josephson effect is a macroscopic quantum tunneling phenomenon in a system with superfluid property, when it is split into two parts by a barrier. Here, we examine the Josephson effect in a driven-dissipative supersolid realized by…

Quantum Gases · Physics 2025-01-28 Jieli Qin , Shijie Li , Yijia Tu , Maokun Gu , Lin Guan , Weimin Xu , Lu Zhou

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

Diodes have a nonreciprocal voltage versus current relationship, produced by breaking the space and time reversal symmetry. However, developing high-end superconducting computers requires a superconducting analogue of the traditional…

Superconductivity · Physics 2025-10-03 Cliff Sun , Ziqi Zhao , Alexey Bezryadin

Many proposals in exploring topological quantum computation are based on superconducting quantum devices constructed on materials with strong spin-orbit coupling (SOC). For these devices, a full control on both the magnitude and the spatial…

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