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Near the critical temperature of a superconducting transition, the energy of the threshold perturbation $\delta F_{thr}$ that transfers a superconducting bridge to a resistive state at a current below the critical current $I_c$ has been…

Superconductivity · Physics 2016-06-08 P. M. Marychev , D. Yu. Vodolazov

We propose that the superconducting diode (SD) efficiency can be significantly enhanced near the transition between two superconducting states by choosing parameters where, before the system goes normal with increasing supercurrent, it…

Superconductivity · Physics 2026-02-19 Uddalok Nag , Jonathan Schirmer , Chao-Xing Liu , J. K. Jain

The superconducting diode effect (SDE) has recently been observed in various systems, sparking interest in novel superconducting devices and offering a new platform to probe intrinsic material properties. Josephson junctions with strong…

In this paper, a transient delayed rising and fall time of $\beta$-Ga$_2$O$_3$ NMs Schottky barrier diodes (SBDs) formed on four different substrates (diamond, Si, sapphire, and polyimide) were measured using a sub-micron second resolution…

Applied Physics · Physics 2022-07-27 Junyu Lai , Jung-Hun Seo

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

We study the ratchet effect in a narrow pinning-free superconductive ring based on time-dependent Ginzburg-Landau (TDGL) equations. Voltage responses to external dc an ac currents at various magnetic fields are studied. Due to asymmetric…

Superconductivity · Physics 2021-01-07 Ji Jiang , Yong-Lei Wang , M. V. Milošević , Zhi-Li Xiao , F. M. Peeters , Qing-Hu Chen

Rectification effects in solid-state devices are a consequence of nonreciprocal transport properties. This phenomenon is usually observed in systems with broken inversion symmetry. In most instances, nonreciprocal transport arises in the…

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…

Superconducting systems that simultaneously lack space-inversion and time-reversal symmetries have recently been the subject of a flurry of experimental and theoretical research activities. Their ability to carry supercurrents with…

Superconductivity · Physics 2023-08-25 Andreas Costa , Jaroslav Fabian , Denis Kochan

Recently the superconducting diode effect (SDE) has attracted a lot of attention due to new possibilities in the field of superconducting electronics. One of the possible realizations of the SDE is the implementation in superconducting…

Superconductivity · Physics 2023-05-02 T. Karabassov , I. V. Bobkova , V. M. Silkin , B. G. Lvov , A. A. Golubov , A. S. Vasenko

We studied experimentally the effect of a stripe-like domain structure in a ferromagnetic BaFe_{12}O_{19} substrate on the magnetoresistance of a superconducting Pb microbridge. The system was designed in such a way that the bridge is…

Cr$_{1/3}$NbS$_{2}$ is a transition metal dichalcogenide that is also a chiral helimagnet, and so lacks inversion symmetry and has non-zero Berry curvature in position and momentum space. It is well known that the combination of broken…

Nonreciprocal electrical transport, characterized by an asymmetric relationship between current and voltage, plays a crucial role in modern electronic industries. Recent studies have extended this phenomenon to superconductors, introducing…

In Josephson diodes the asymmetry between positive and negative current branch of the current-phase relation leads to a polarity-dependent critical current and Josephson inductance. The supercurrent nonreciprocity can be described as a…

We have measured the very low temperature (down to 30 mK) subgap resistance of Titanium Nitride (Superconductor, Tc = 4.6 K)/highly doped Silicon (Semiconductor) SIN junction (the insulating layer stands for the Schottky barrier). As the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 F. Lefloch , D. Quirion , M. Sanquer

We realize a superconducting nanodevice in which vortex traps in the form of an aluminum square are integrated with a Dayem nanobridge. We perform field-cooling of the traps arriving to different vortex configurations, dependent on the…

Superconductor/topological material heterostructures are intensively studied as a platform for topological superconductivity and Majorana physics. However, the high cost of nanofabrication and the difficulty of preparing high-quality…

Superconductivity · Physics 2023-08-03 Keita Ishihara , Le Duc Anh , Tomoki Hotta , Kohdai Inagaki , Masaki Kobayashi , Masaaki Tanaka

The interplay among frustrated lattice geometry, nontrivial band topology and correlation yields rich quantum states of matter in Kagome systems. A series of recent members in this family, AV3Sb5 (A= K, Rb, Cs), exhibit a cascade of…

We present a superconducting noise bolometer for terahertz radiation, which is suitable for large-format arrays. It is based on an antenna-coupled superconducting micro-bridge embedded in a high-quality factor superconducting resonator for…

Instrumentation and Detectors · Physics 2017-09-12 A. A. Kuzmin , A. D. Semenov , S. V. Shitov , M. Merker , S. H. Wuensch , A. V. Ustinov , M. Siegel

The magnetoresistance of thin superconducting strips subject to a perpendicular magnetic field B and low temperatures T manifests a sequence of alternating superconductor-insulator transitions (SIT). We study this phenomenon within a quasi…

Superconductivity · Physics 2013-05-29 Yeshayahu Atzmon , Efrat Shimshoni