ACS Appl Mater Interfaces
November 2023
Inherent properties of superconducting BiSrCaCuO films, such as the high superconducting transition temperature , efficient Josephson coupling between neighboring CuO layers, and fast quasiparticle relaxation dynamics, make them a promising platform for advances in quantum computing and communication technologies. However, preserving two-dimensional superconductivity during device fabrication is an outstanding experimental challenge because of the fast degradation of the superconducting properties of two-dimensional flakes when they are exposed to moisture, organic solvents, and heat. Herein, to realize superconducting devices utilizing two-dimensional (2D) superconducting films, we develop a novel fabrication technique relying on the cryogenic dry transfer of printable circuits embedded into a silicon nitride membrane.
View Article and Find Full Text PDFHigh-temperature cuprate superconductors based van der Waals (vdW) heterostructures hold high technological promise. One of the obstacles hindering their progress is the detrimental effect of disorder on the properties of the vdW-devices-based Josephson junctions (JJs). Here, a new method of fabricating twisted vdW heterostructures made of Bi Sr CuCa O , crucially improving the JJ characteristics and pushing them up to those of the intrinsic JJs in bulk samples, is reported.
View Article and Find Full Text PDFAluminum Josephson junctions are the building blocks for the realization of superconducting quantum bits. Attention has been also paid to hybrid ferromagnetic Josephson junctions, which allow switching between different magnetic states, making them interesting for applications such as cryogenic memories, single-photon detectors, and spintronics. In this paper, we report on the fabrication and characterization of high-quality ferromagnetic Josephson junctions based on aluminum technology.
View Article and Find Full Text PDFBackground: On February 21 2020, in Schiavonia Hospital occurred the first death by COVID-19 in Italy and since this date SARS-CoV-2 caused more than 100,000 deaths in our country. Our hospital was immediately closed and re-opened after 15 days as a reference Covid Hospital. Among services involved in a process of destruction and rebirth there was also the Vascular Access Team.
View Article and Find Full Text PDFBackground: Since COVID-19 was declared a pandemic, governments have taken actions to limit the transmission of the virus such as lockdown measures and reorganization of the local Health System. Quarantine measures have influenced pregnant women's daily lives. The aim of this study was to understand the impact of the changes imposed by COVID-19 emergency on the well-being of pregnant women and how the transformation of Schiavonia Hospital into a dedicated COVID hospital affected their pregnancy experience.
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