Harmonic Susceptibilities and Pinning Properties of MgB2 Bulk Superconductors
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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]
Collections | ANU Research Publications |
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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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