Moderation of the Flux Jumps Dynamics by Eddy-Currents in a Disk Shape NbTi Superconductor |
| S. Vasilieva, V.V. Chabanenkob, A. Nabiałeka, V. Rusakovc, S. Piechotaa and H. Szymczaka
aInstitute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland bDonetsk Physico-Technical Institute, Ukrainian Academy of Sciences, 72 R. Luxemburg str., 83114, Donetsk, Ukraine cDonetsk National University, Universitetskaya str. 24, 83-055 Donetsk, Ukraine |
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| We studied the moderation of the flux jumps dynamics in a disc shape NbTi-50% superconductor caused by eddy-currents induced in two copper cylinders attached to both surfaces of the investigated sample. We investigated experimentally the time of the flux jump duration, amount of the magnetic flux entering the sample during the jump as well as the fine structure of the jumps as a function of temperature and the external magnetic field. A simple theoretical model, which describes the magnetic field dependence of the amount of the magnetic flux entering the superconducting sample during the flux jump, was developed. |
| DOI: 10.12693/APhysPolA.106.777 PACS numbers: 74.60.Ec, 74.60.Ge |