Superconductivity in Nanostructured Ga-Ag Eutectic Alloy.

Autor: Likholetova, M. V., Lezova, I. E., Shevchenko, E. V., Charnaya, E. V., Lee, M. K., Chang, L.-J., Kumzerov, Y. A., Fokin, A. V.
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Zdroj: KnE Engineering; 10/8/2018, p416-421, 6p
Abstrakt: The dc and ac magnetizations were studied for the eutectic Ga-Ag alloy embedded into a porous glass with 7 nm mean pore size. The measurements were performed within a temperature range of 1.9 to 10 K which covers the superconducting transition for the nanocomposite. The onset of superconductivity at the magnetic field 10 Oe was found at about 7.1 K which is much higher than in bulk gallium. The phase diagram showed a positive curvature at low magnetic fields. The activation energy of vortex mobility was calculated at different magnetic fields using the ac data. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index