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The structure of the Meissner effect in a current-carrying cylindrical wire with arbitrary disorder is studied using a numerical procedure that is exact within the semiclassical approximation. A distribution of currents is found that is…

Superconductivity · Physics 2009-10-31 J. Sánchez-Cañizares , J. Ferrer , F. Sols

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

Introducing new components and functionalities into quantum devices is critical in advancing state-of-the-art hardware. Here, we propose superconducting diodes (SDs) as a coherent nonreciprocal element in circuit quantum electrodynamics…

Quantum Physics · Physics 2026-04-22 Nicolas Dirnegger , Prineha Narang , Arpit Arora

Stimulated by the recent experiment [F. Ando et al., Nature 584, 373 (2020)], we propose an intrinsic mechanism to cause the superconducting diode effect (SDE). SDE refers to the nonreciprocity of the critical current for the…

Superconductivity · Physics 2022-02-02 Akito Daido , Yuhei Ikeda , Youichi Yanase

We show that prominent features in voltage-current characteristics, recently measured in the mixed state of high-Tc superconductors and interpreted as evidence for an irreversibility line or a vortex-glass transition, may very well be…

Superconductivity · Physics 2009-11-07 I. L. Landau , H. R. Ott

The hetero junction between the different materials often gives the rectification effect; e.g., pn junction is used for diode. On the other hand, the Josephson junction between the two superconductors is assumed to show symmetric response…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 Kou Misaki , Naoto Nagaosa

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 report a new nonlocal effect in vortex matter, where an electric current confined to a small region of a long and sufficiently narrow superconducting wire causes vortex flow at distances hundreds of inter-vortex separations away. The…

In noncentrosymmetric superconductors, superconducting and normal conductions can interchange based on the current flow direction. This effect is termed a superconducting diode effect (SDE), which is a focal point of recent research. The…

Superconducting diode effects (SDEs) generally emerge in superconducting systems where both time-reversal and inversion symmetries are broken, showing nonreciprocal current characteristics: nondissipative in one direction and ohmic in the…

Superconductivity · Physics 2025-02-19 Jiajun Ma , Ruiya Zhan , Xiao Lin

We calculate the non-reciprocal critical current and quantify the supercurrent diode effect in Rashba superconductors with arbitrary disorder, using the quasiclassical Eilenberger equation. The non-reciprocity is caused by the helical…

Superconductivity · Physics 2022-05-02 Stefan Ilić , F. Sebastian Bergeret

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

We report the existence of dissipationless currents in bilayer superconductors above the critical temperature $T_c$, assuming that the superconducting phase transition is dominated by phase fluctuations. Using a semiclassical $U(1)$ lattice…

Superconductivity · Physics 2023-09-12 Guido Homann , Marios H. Michael , Jayson G. Cosme , Ludwig Mathey

Nonreciprocal transport in superconducting systems serves as a powerful probe of symmetry-breaking mechanisms, with the superconducting diode effect emerging as a key manifestation enabling cryogenic rectification. While theoretical models…

Superconductivity · Physics 2025-04-29 Yu He , Zifeng Wang , Jiaxu Li , Fenglin Zhong , Haozhe Yang , Kewen Shi , Le Wang , Guang Yang , Weisheng Zhao

Current flow in electronic devices can be asymmetric with bias direction, a phenomenon underlying the utility of diodes and known as non-reciprocal charge transport. The promise of dissipationless electronics has recently stimulated the…

We study theoretically the superconductor diodes, where the magnitude of the critical current changes as the direction is reversed, in terms of a generalized Ginzburg-Landau model with the higher-order terms in the momentum of the order…

Superconductivity · Physics 2024-01-17 James Jun He , Yukio Tanaka , Naoto Nagaosa

Superconducting vortex loops have so far avoided experimental detection despite being the focus of much theoretical work. We here propose a method of creating controllable vortex loops in the superconducting condensate arising in a normal…

Superconductivity · Physics 2020-10-30 Eirik Holm Fyhn , Jacob Linder

Nonreciprocal transport effects can occur in the normal state of conductors and in superconductors when both inversion and time-reversal symmetry are broken. Here, we consider systems where magnetochiral anisotropy (MCA) of the energy…

Mesoscale and Nanoscale Physics · Physics 2025-01-03 Georg Angehrn , Henry F. Legg , Daniel Loss , Jelena Klinovaja

In the present work we investigate the behavior of a vortex in a long superconducting cylinder near to a columnar defect at the center. The derivations of the local magnetic field distribution and the Gibbs free energy will be carried out…

Superconductivity · Physics 2009-11-10 Edson Sardella , Rodrigo de Alvarenga Freire , P. N. Lisboa-Filho

We theoretically study the superconducting diode effect in a three-terminal Josephson junction. The diode effect in superconducting systems is typically related to the presence of a difference in the critical currents for currents flowing…

Superconductivity · Physics 2024-08-07 Jorge Huamani Correa , Michal P. Nowak