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

K. Belala
K. Belala
, 
A. Galluzzi
A. Galluzzi
, 
M.F. Mosbah
M.F. Mosbah
 oraz 
M. Polichetti
M. Polichetti
   | 01 cze 2021
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Data publikacji: 01 cze 2021
Zakres stron: 15 - 23
Otrzymano: 22 lut 2021
Przyjęty: 22 lut 2021
DOI: https://doi.org/10.2478/msp-2021-0005
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© 2021 K. Belala et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

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

Fig. 2

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.
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.

Fig. 3

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

Fig. 4

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

Fig. 5

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

Fig. 6

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

Tcoff {\rm{T}}.{\rm{c}}^{{\rm{off}}} of the samples.

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

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

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

Tconset {\rm{T}}.{\rm{c}}^{{\rm{onset}}} of the samples.

x 0 0.01 0.02 0.03 0.04 0.05
Tconset {\rm{T}}_{\rm{c}}^{{\rm{onset}}} substitution [K] 82.19 81.94 79.03 79.14 75.28 80.4
Tconset {\rm{T}}_{\rm{c}}^{{\rm{onset}}} addition [K] 82.19 70.85 78.3 79.38 80.31 78.72
eISSN:
2083-134X
Język:
Angielski
Częstotliwość wydawania:
4 razy w roku
Dziedziny czasopisma:
Materials Sciences, other, Nanomaterials, Functional and Smart Materials, Materials Characterization and Properties
Kanał RSS czasopisma