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Harmonic Susceptibilities and Pinning Properties of MgB2 Bulk Superconductors

Senatore, C; Polichetti, M; Zola, Danilo; Di Matteo, Tiziana; Giunchi, Giovanni; Pace, Sandro

Description

The fundamental and third harmonics of the ac magnetic susceptibility have been studied on MgB2 bulk superconductors, obtained by reactive liquid infiltration. In particular, measurements performed as a function of temperature, dc magnetic field, ac field amplitude and frequency have been compared with susceptibility curves obtained by means of numerical simulations of the non-linear diffusion equation for the magnetic field. The experimental frequency dependence of the χ1″(T) and |χ3|(T) peak...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
URI: http://hdl.handle.net/1885/86652
Source: Physica C - Superconductivity and its applications
DOI: 10.1016/S0921-4534(02)02706-5

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