منابع مشابه
Superconductivity at 155 K
Transition to a superconducting zero-resistance state at 155 K is observed for the first time in bulk material. A new five-element compound has been synthesized with nominal composition YIBa2Cu3F20y. Fluorine plays a critical role in achieving this eAect. X-ray diffraction and electron microprobe analysis indicate that the samples are multiphasic. Evidence is presented that the samples contain ...
متن کاملDisorder-controlled superconductivity at YBa2Cu3O7/SrTiO3 interfaces
J. Garcia-Barriocanal,1 A. M. Perez-Muñoz,1,2 Z. Sefrioui,1 D. Arias,1,3 M. Varela,1,4 C. Leon,1 S. J. Pennycook,4 and J. Santamaria1 1GFMC. Dpto. Fisica Aplicada III, Universidad Complutense de Madrid, 28040 Madrid, Spain 2CEI Campus Moncloa, UCM-UPM, 28040 Madrid, Spain 3Grupo de Materiales Magnéticos y Nanoestructuras, Universidad del Quindı́o, Armenia, Spain 4Materials Science & Technology D...
متن کاملIndication of superconductivity at 35 K in graphite-sulfur composites.
We report magnetization measurements performed on graphite-sulfur composites which demonstrate a clear superconducting behavior below the critical temperature T(c0) = 35 K. The Meissner-Ochsenfeld effect, screening supercurrents, and magnetization hysteresis loops characteristic of type-II superconductors were measured. The results indicate that the superconductivity occurs in a small sample fr...
متن کاملAtomic resolution structure of concanavalin A at 120 K.
The structure of native concanavalin A has been refined to a resolution of 1.2 A against data collected at 120 K. The space group is I222, with a = 61.954 (8), b = 86.053 (11), c = 89.079 (11) A. The structure was refined by restrained weighted least-squares minimization of sum w(F(o)(2) - F(c)(2)(2) with SHELXL92/3/6. The final model contains all of the atoms from 237 amino acids, two metal io...
متن کاملSuperconductivity at 22 K in Co-doped BaFe2As2 crystals.
Here we report bulk superconductivity in BaFe1.8Co0.2As2 single crystals below Tc=22 K, as demonstrated by resistivity, magnetic susceptibility, and specific heat data. Hall data indicate that the dominant carriers are electrons, as expected from simple chemical reasoning. This is the first example of superconductivity induced by electron doping in this family of materials. In contrast with cup...
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ژورنال
عنوان ژورنال: Nanoscale
سال: 2020
ISSN: 2040-3364,2040-3372
DOI: 10.1039/c9nr04996g