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The simultaneous breaking of time-reversal and inversion symmetry can lead to peculiar effects in Josephson junctions, such as the anomalous Josephson effect or supercurrent rectification, which is a dissipationless analog of the diode…

The supercurrent diode effect (SDE) describes superconducting systems where the magnitude of the superconducting-to-normal state switching current differs for positive and negative current bias. Despite the ubiquity of such diode effects in…

Superconductivity · Physics 2026-02-11 Joseph J. Cuozzo , François Léonard

The superconducting diode effect -- the dependence of critical current on its direction -- can arise from the simultaneous breaking of inversion and time-reversal symmetry in a superconductor and has gained interest for its potential…

Superconductivity · Physics 2024-07-18 Haixuan Huang , Tatiana de Picoli , Jukka I. Väyrynen

Recent advances have attracted attention to non-standard Josephson junctions in which a supercurrent can flow despite zero phase difference between the constituent superconducting leads. Here, we propose a zero-phase-difference…

Mesoscale and Nanoscale Physics · Physics 2017-05-17 A. M. Eriksson , A. Vikström

The ability to non-dissipatively tune the Josephson coupling energy of Josephson junctions is a useful tool in frequency-tunable qubits. This is typically done by threading magnetic flux through two junctions connected in a loop, a geometry…

Mesoscale and Nanoscale Physics · Physics 2026-02-26 Maxwell Wisne , Venkat Chandrasekhar

Not so long ago, thermoelectricity in superconductors was believed to be possible only by breaking explicitly the particle-hole symmetry. Recently, it has been theoretically predicted that a superconducting tunnel junction can develop…

Josephson diode (JD) effect found in Josephson tunnel junctions (JTJs) has attracted a great deal of attention due to its importance for developing superconducting circuitry based quantum technologies. So far, the highly desirable…

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

The superconducting diode effect is an asymmetry in the critical current with respect to the supercurrent polarity. One impetus driving recent interest in the effect is its dependence on intrinsic or microscopic symmetry breaking…

In the presence of an external magnetic field Cooper pairs in noncentrosymmetric superconductors can acquire finite momentum. Recent theory predicts that such finite-momentum pairing can lead to an asymmetric critical current, where a…

We report the observation of Josephson diode effect (JDE) in hybrid devices made from semiconductor InAs nanosheets and superconductor Al contacts. By applying an in-plane magnetic field ($B_{\mathrm{xy}}$), we detect non-reciprocal…

Mesoscale and Nanoscale Physics · Physics 2025-04-17 Shili Yan , Yi Luo , Haitian Su , Han Gao , Xingjun Wu , Dong Pan , Jianhua Zhao , Ji-Yin Wang , Hongqi Xu

The field-free and highly efficient diodes with the nonreciprocity of supercurrent are believed to be the core block of the superconducting computing devices without dissipation. In this paper, we propose a Josephson diode based upon…

Superconductivity · Physics 2024-08-06 Qiang Cheng , Yue Mao , Qing-Feng Sun

We investigate the Josephson diode effect in a superconducting interferometer under nonequilibrium conditions. In contrast to its thermodynamic counterpart, which requires the simultaneous breaking of time-reversal and inversion symmetry,…

Superconductivity · Physics 2025-09-12 Daniel Shaffer , Songci Li , Jaglul Hasan , Mikhail Titov , Alex Levchenko

We propose a universal mechanism for the Josephson diode effect in short Josephson junctions. The proposed mechanism is due to finite Cooper pair momentum and is a manifestation of simultaneous breaking of inversion and time-reversal…

Superconductivity · Physics 2023-10-26 Margarita Davydova , Saranesh Prembabu , Liang Fu

We theoretically study the behavior of the critical current of a thermally-biased tunnel Josephson junction with a particular design, in which the electrodes of the junction are enclosed in two different superconducting loops pierced by…

Superconductivity · Physics 2022-07-20 Claudio Guarcello , Roberta Citro , Francesco Giazotto , Alessandro Braggio

We study the Josephson diode effect in the one-dimensional superconductor/helimagnet/superconductor junctions using the Green's function method. For the spin-singlet $s$-wave pairing in superconductors, it is found that the necessary…

Superconductivity · Physics 2026-05-29 Qiang Cheng , Yu-Chen Zhuang , Qing-Feng Sun

The superconducting diode effect occurs in superconducting materials in which both spin and inversion symmetry are broken. The recently observed chirality-induced spin selectivity effect demonstrates that chiral materials break both…

Superconducting diodes are proposed non-reciprocal circuit elements that should exhibit non-dissipative transport in one direction while being resistive in the opposite direction. Multiple examples of such devices have emerged in the past…

Efficient, scalable, and magnetic-field-free superconducting diodes are essential for future superconducting electronics; yet, despite significant efforts, such practical devices remain unrealized. The main challenge lies in achieving…

Applied Physics · Physics 2026-05-14 Razmik A. Hovhannisyan , Taras Golod , Amirreza Lotfian , Vladimir M. Krasnov

We study a multi-terminal Josephson junction consisting of a central spin-orbit-coupled (SOC) region with an in-plane Zeeman field connected to four superconducting terminals. This setup allows for the simultaneous measurement of both…

Superconductivity · Physics 2025-07-29 Bijay Kumar Sahoo , Abhiram Soori