Transport and magnetic properties of Bi(Pb)2212 superconducting ceramics doped by low rate of potassium

K. Belala; A. Galluzzi; M.F. Mosbah; M. Polichetti

doi:10.2478/msp-2021-0005

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Transport and magnetic properties of Bi(Pb)2212 superconducting ceramics doped by low rate of potassium

Materials Science-Poland

Volume 39 (2021): Issue 1 (March 2021)

By: K. Belala, A. Galluzzi, M.F. Mosbah and M. Polichetti

Open Access

|Jun 2021

Figures & Tables

Table 1

Variations of the orthorhombic strain (b−a)/(a+b) versus x content of potassium for samples obtained by substitution and addition [21].

x	0	0.01	0.02	0.03	0.04	0.05
(b−a)/(a+b)×10³ substitution	0.00413	0.00374	0.00552	0.00501	0.00375	0.00452
(b−a)/(a+b)×10³ addition	0.00413	0.00412	0.00361	0.00429	0.00269	0.00439

Table 2

Variations of lattice parameter c versus x content of potassium for samples obtained by substitution and addition [21].

x	0	0.01	0.02	0.03	0.04	0.05
c[Å] substitution	30.6841	30.71	30.5705	30.5124	30.6947	30.7269
c[Å] addition	30.6841	30.7985	30.7479	30.7203	30.6479	30.7074

Resistivity versus temperature curves obtained for samples doped by potassium substitution (a) and addition (b).

Table 3

$T_{c}^{onset}$ of the samples.

x	0	0.01	0.02	0.03	0.04	0.05
$T_{c}^{onset}$ substitution [K]	82.19	81.94	79.03	79.14	75.28	80.4
$T_{c}^{onset}$ addition [K]	82.19	70.85	78.3	79.38	80.31	78.72

Table 4

$T_{c}^{off}$ of the samples.

x	0	0.01	0.02	0.03	0.04	0.05
$T_{c}^{off}$ substitution [K]	79.27	73.73	74.56	75.71	74.43	77.68
$T_{c}^{off}$ addition [K]	79.27	47.31	73.78	73.56	76.13	72.05

Magnetization as the function of temperature M(T) using ZFC-FC procedure for the K doped samples by substitution (a) and by addition (b). The applied field is 0.002 Tesla. The insets show a magnification of the region near the superconducting transition.

Variation of ΔM with temperature for samples obtained by substitution (a) and addition (b) of potassium

T_c and T_irr values obtained for K doped samples by substitution (a) and addition (b) of potassium

Magnetic hysteresis loops measured at T = 4.2 K for the K doped samples by substitution (a) and addition (b).

Magnetic field dependence, at T = 4.2 K, of critical current density J_c for K doped samples with substitution (a) and addition (b).

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DOI: https://doi.org/10.2478/msp-2021-0005 | Journal eISSN: 2083-134X (formerly 2083-124X) | Journal ISSN: 2083-1331

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Language: English

Page range: 15 - 23

Submitted on: Feb 22, 2021

Accepted on: Feb 22, 2021

Published on: Jun 1, 2021

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Keywords:

ceramics,

superconductors,

transport properties,

magnetic properties

Related subjects:

Materials sciences,

Materials sciences, other,

Nanomaterials,

Functional and smart materials,

Materials characterization and properties

© 2021 K. Belala, A. Galluzzi, M.F. Mosbah, M. Polichetti, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 39 (2021): Issue 1 (March 2021)

Transport and magnetic properties of Bi(Pb)2212 superconducting ceramics doped by low rate of potassium

Figures & Tables

Table 1

Table 2

Fig. 1

Table 3

Table 4

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

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