I-V characteristic behavior of BSCCO-2223 superconductor under low intensity DC magnetic fields a Home-Made Experiment

Guilherme Botega Torsoni; Gustavo Quereza Freitas; Claudio Luis Carvalho

doi:10.30609/jeti.v1i2.5682

Guilherme Botega Torsoni IFMS - Instituto Federal do Mato Grosso do Sul
Gustavo Quereza Freitas IFGoiano
Claudio Luis Carvalho UNESP

DOI: https://doi.org/10.30609/jeti.v1i2.5682

Keywords: Bi-2223 superconductors, current-voltage characteristics curves, electrical properties, DC magnetic field

Abstract

Electrical characterization of superconductor materials exposed to external magnetic field play a important role for many technological applications. In this paper, the electrical characterization of Bi-2223 pellet prepared by conventional route was performed. The electrical resistance temperature
dependence (RxT), showed a superconductor transition at around 105 K. The current-voltage (I-V) behavior under magnetic field and temperature has been investigated, the results point to a powerlaw dependence between the electrical current (I) and applied voltage (V), at different conditions, as described by the literature. The external DC magnetic field, was produced by a simple home-made apparatus, where a simple copper coil was used to produce an external DC magnetic field between 2,0 mT and 8,0 mT. Then, the dependence of the critical current (Ic) on magnetic field and temperature has been studied, revealing a double step behavior

DOI:http://dx.doi.org/10.30609/JETI.2018-2.5682

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