The structure and superconducting properties of low-vacuum aluminum condensates
L. S. PalatnikPolytechnic Institute, Khar’kov and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovA. G. SivakovPolytechnic Institute, Khar’kov and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovV. G. VolotskayaPolytechnic Institute, Khar’kov and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovI. Kh. TartakovskayaPolytechnic Institute, Khar’kov and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovO. I. KovalevaPolytechnic Institute, Khar’kov and Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
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We report the first studies of the superconducting properties of low-vacuum aluminum condensates (LVAC). We have determined the critical temperatures Tc, the width of the transition to the superconducting state ΔT, and the temperature dependence of the critical field near Tc. We have established the dependence of Tc on the electron mean free path length leff and demonstrate a relationship between leff and the condensation conditions.
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