G. GRASSO

In this paper we describe an apparatus for static measurements of the thermal conductivity of Bi(2223)/Ag-sheathed tapes in a temperature range going from 4K to 200K, The standard experimental technique has been improved by the implementation of an original sample arrangement that minimizes the thermal losses by radiation. We have performed a...

As-grown superconducting MgB2 thin films were deposited by pulsed laser deposition on magnesium oxide and sapphire substrates. Starting from a non-stoichiometric, Mg and B mixed-powder target, we were able to grow the superconducting phase during the film deposition, without any further annealing process. So far, samples grown in the...