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Nb films containing extended arrays of holes with 45-nm diameter and 100-nm spacing have been fabricated using anodized aluminum oxide (AAO) as substrate. Pronounced matching effects in the magnetization and Little-Parks oscillations of the…

Superconductivity · Physics 2009-11-07 U. Welp , Z. L. Xiao , J. S. Jiang , V. K. Vlasko-Vlasov , S. D. Bader , G. W. Crabtree , J. Liang , H. Chik , J. M. Xu

Manufacturing superconducting circuits out of ultrathin films is a challenging task when it comes to patterning complex compounds, which are likely to be deteriorated by the patterning process. With the purpose of developing high-T$_c$…

Vortex trapping is investigated in thin-film strips of superconducting material. We present a model for the critical field above which vortex trapping occurs in these strips. This model includes the pairing energy of vortex-antivortex pairs…

Superconductivity · Physics 2015-05-13 K. H. Kuit , J. R. Kirtley , J. R. Clem , H. Rogalla , J. Flokstra

The integration of high-temperature superconducting YBa2Cu3O6+x (YBCO) into flexible electronic devices has the potential to revolutionize the technology industry. The effective preparation of high-quality flexible YBCO films therefore…

Diodes are key elements for electronics, optics, and detection. The search for a material combination providing the best performances for the required application is continuously ongoing. Here, we present a superconducting spintronic tunnel…

It is shown that integration of a thin film superconducting strip with current-carrying control wires enables one to engineer a profile of supercurrent density $J(x)$ with no current crowding at the edges of a strip wider than the magnetic…

Superconductivity · Physics 2026-05-04 Alex Gurevich

In cuprate high-temperature superconductors the doping level is fixed during synthesis, hence the charge carrier density per CuO$_2$ plane cannot be easily tuned by conventional gating, unlike in 2D materials. Strain engineering has…

Bulk superconductor samples of YBa2Cu3-xZnxO7-{\delta} with x = 0, 0.01, 0.03 are synthesized by solid-state reaction route. The structural characterisation of all samples has been carried out by x-ray-diffraction (XRD) and transmission…

Superconductivity · Physics 2012-07-27 Sushant Gupta , R. S. Yadav , B. Das

We have grown and characterized 30 nm thick YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) films, deposited by pulsed laser deposition on both MgO (110) and SrTiO$_3$ (001) substrates, which induce opposite strain to the superconducting layer. By…

Superconductivity · Physics 2018-03-05 Riccardo Arpaia , Eric Andersson , Edoardo Trabaldo , Thilo Bauch , Floriana Lombardi

Mechanisms of vortex dynamics and pinning and self-field effects which could account for the thickness dependence of the critical current density J_c of superconducting films are addressed. It is shown that at low magnetic fields B, the 2D…

Superconductivity · Physics 2007-05-23 A. Gurevich

Supercurrent rectification, nonreciprocal response of superconducting properties sensitive to the polarity of bias and magnetic field, has attracted growing interest as an ideal diode. While the superconducting rectification effect is a…

Superconductivity · Physics 2025-04-18 Yusuke Kobayashi , Junichi Shiogai , Tsutomu Nojima , Jobu Matsuno

We have investigated the confinement of 3-D vortices in specific cases of Type-II ($\kappa = 2$) nano-superconducting devices. The emergent pattern of vortices greatly depends on the orientation of an applied magnetic field (transverse or…

Superconductivity · Physics 2017-07-07 Wai Man Wu , Binoy Sobnack , Derek Michael Forrester , Feodor Kusmartsev

Dissipation-free current transport in high-temperature superconductors is one of the most crucial properties of this class of materials which is directly related to the effective inhibition of flux line movement by defect structures. In…

Superconductivity · Physics 2009-11-13 J Albrecht , M Djupmyr , S Bruck

Superconducting thin-film electronics are attractive for their low power consumption, fast operating speeds, and ease of interface with cryogenic systems such as single-photon detector arrays, and quantum computing devices. However, the…

A strong superconducting diode effect (SDE) is revealed in a thin superconducting film periodically nanostructured with magnetic dots. The SDE is caused by the current-activated dissipation mitigated by vortex-antivortex pairs (VAPs), which…

Superconductivity · Physics 2022-09-27 Ji Jiang , M. V. Milošević , Yong-Lei Wang , Zhi-Li Xiao , F. M. Peeters , Qing-Hu Chen

High-temperature superconducting microbridges implemented with YBa(2)Cu(3)O(7-delta) thin-films are shown to be possible fault current limiters for microelectronic devices with some elements working at temperatures below the superconducting…

Superconductivity · Physics 2009-01-16 J. A. Lorenzo Fernandez , M. R. Osorio , J. A. Veira , F. Vidal

Superconducting circuits are a promising platform for implementing fault-tolerant quantum computers, quantum limited amplifiers, ultra-low power superconducting electronics, and sensors with ultimate sensitivity. Typically, circuit…

An enhancement of vortex-motion damping in thin Pb/In superconducting films is obtained through coupling to an adjacent two-dimensional electron gas formed in a modulation-doped GaAs/AlGaAs heterostructure. This effect is observed by…

Superconductivity · Physics 2007-05-23 M. Danckwerts A. R. Goni , C. Thomsen , K. Eberl , A. G. Rojo

The implementation of the 2nd generation high-Tc superconductors in power applications, such as electrical transformers, motors and generators requires superconducting wires that are superior to copper Litz wires at cryogenic temperatures…

Superconductivity · Physics 2015-06-25 G. A. Levin , P. N. Barnes

Inherent properties of superconducting Bi2Sr2CaCu2O8+x films, such as the high superconducting transition temperature Tc, efficient Josephson coupling between neighboring CuO layers, and fast quasiparticle relaxation dynamics, make them a…