| Autor: |
Nikoghosyan, S. K., Sargsyan, A. G., Zargaryan, Y. G., Aivazyan, A., Hakopyan, A. |
| Předmět: |
|
| Zdroj: |
Armenian Journal of Physics; 2023, Vol. 16 Issue 4, p114-118, 5p |
| Abstrakt: |
The effect of the location with different concentrations of La atoms (x = 0; 0.02; 0.028; 0.11) on some superconducting and electrotransport characteristics of Y1-xLaxBa2Cu3Oy polycrystalline compounds was studied by recording the temperature dependence ρ(T) curves of resistivity in the case of direct current in the range of temperatures (77K - 300K). The temperatures at the onset (Tc on) and offset (Tc 0) of the transition, as well as the width of the transition - ΔTc = Tc on-Tc 0, were considered as the superconducting characteristics. The absolute values of ρ(300K) and ρ(100K) and their ratio a = ρ(300K)/ρ(100K) were considered as electric transport characteristics, as well as the temperature coefficient of resistivity dρ/dT, which was determined by ρ(T) in the range of linear dependence with the slope of the curve. From the comparison of these characteristics, it was concluded that there is a certain correlation between the superconducting and electrotransport properties of the studied compounds depending on the concentration x of the partial location of Y atoms with La. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
