Physica C, ( ISI ), Volume (548), No (7), Year (2018-3) , Pages (107-108)

Title : ( Flux pinning mechanism in codoped-MgB2 with Al2O3 and SiC )

Authors: Narjess Sadat Kia Firoozkoohi , Shaban Reza Ghorbani , Hadi Arabi ,

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MgB2 superconductor samples, co-doped with 0.02 wt of Al2O3 and 0.02 wt SiC, have been examined by M-H loop measurements and calculation of the critical current density based on the Bean model. Normalized volume pinning force, f= F/Fmax, as a function of the reduced magnetic field, h =H/Hmax has been obtained at each temperature. Hughochi flux pinning model, which was included the normal point pinning, the normal surface pinning, and the pinning based on spatial variation in the Ginzburg–Landau parameter, was used to study the flux pinning mechanisms. It was found that theΔκeffect and the normal point pinning mechanisms play the main role in the flux pinning at the magnetic field lower than Hmax and the contribution of the Δκ mechanism increases with the increasing temperature, while the contribution of normal point pinning mechanism decreases. At magnetic field larger than Hmax, the only mechanism that acts as the flux pinning was the normal surface pinning mechanism.


, MgB2 superconductor, Critical current density, Flux pinning mechanism
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author = {Kia Firoozkoohi, Narjess Sadat and Ghorbani, Shaban Reza and Arabi, Hadi},
title = {Flux pinning mechanism in codoped-MgB2 with Al2O3 and SiC},
journal = {Physica C},
year = {2018},
volume = {548},
number = {7},
month = {March},
issn = {0921-4534},
pages = {107--108},
numpages = {1},
keywords = {MgB2 superconductor; Critical current density; Flux pinning mechanism},


%0 Journal Article
%T Flux pinning mechanism in codoped-MgB2 with Al2O3 and SiC
%A Kia Firoozkoohi, Narjess Sadat
%A Ghorbani, Shaban Reza
%A Arabi, Hadi
%J Physica C
%@ 0921-4534
%D 2018