Some effects of the doping with alpha - Al_2O_3 nanoparticles in the transport properties of Bi_1.65 Pb_0.35 Sr_2Ca_2 Cu_3O_y ceramic superconductors

Authors

  • Manuel Alfredo Hernández Wolpez Departamento de Física, Universidad de Camaguey

DOI:

https://doi.org/10.31349/RevMexFis.64.127

Keywords:

(Bi, Pb)-2223, Transport properties, Doping, Eects of the material synthesis

Abstract

We present a preliminary study on the effects of alpha - Al_2O_3 nanoparticles (NPs) in the transport properties of Bi_1.65 Pb_0.35 Sr_2Ca_2 Cu_3O_y ((Bi,Pb)-2223) ceramic samples. The (Bi,Pb)-2223 samples were synthesized by the solid state reaction method and alpha - Al_2O_3 NPs, with concentrations ranging from 0.1 to 0.8 wt. percent (% wt.), were added before the last heat treatment. All samples were characterized by means of X-rays diraction patterns, and temperature and magnetic eld dependence of the electrical resistivity, rho(T;Ba). From the experimental (T;Ba) data we extracted the critical temperature dependence of the % wt. of alpha - Al_2O_3 NPs, and by using the Arrhenius
plot the eective pinning energy has been also determined. The results indicate that mostly of the transport properties are optimized for the sample B03.

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Published

2018-03-14

How to Cite

[1]
M. A. Hernández Wolpez, “Some effects of the doping with alpha - Al_2O_3 nanoparticles in the transport properties of Bi_1.65 Pb_0.35 Sr_2Ca_2 Cu_3O_y ceramic superconductors”, Rev. Mex. Fís., vol. 64, no. 2 Mar-Apr, pp. 127–131, Mar. 2018.

Issue

Vol. 64 No. 2 Mar-Apr (2018): Revista Mexicana de Física

Section

05 Condensed Matter

License

Authors retain copyright and grant the Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.