- Tytuł:
- Effects of Europium-Barium Nonstoichiometry in EBCO123 Systems on Transition and Magnetization Properties
- Autorzy:
-
Cigáň, A.
Maňka, J.
Kopčok, M.
Polovková, J.
Jurdák, P.
Koňakovský, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1813614.pdf
- Data publikacji:
- 2008-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.72.-h
74.62.Bf
74.25.Fy
74.25.Ha - Opis:
- We studied the effects of Eu-Ba nonstoichiometry in two series of $Eu_{1+x}Ba_{2-x}Cu_3O_{7-δ}$ and $Eu_{1-x}Ba_{2+x}Cu_3O_{7-δ}$ samples on transition, structural, and magnetic properties. The samples with the nominal composition of 0≤x≤0.07 were synthesized by the solid-state reaction method from $Eu_2O_3,$ $BaCO_3,$ and CuO precursors and sintered at 1050°C for 72 h in flowing oxygen. All the samples show the values of critical temperature $T_c$, volume density ρ, and maximum volume magnetization $M_\text{max}$ higher than 90 K, 6.3 g $cm^{-3}$ and $10^4 Am^{-1}$, respectively, except for x = 0.07 samples. The Eu-Ba nonstoichiometry in the two series shows different effects on transport, magnetization hystereses, and intergrain properties of the samples.
- Źródło:
-
Acta Physica Polonica A; 2008, 113, 1; 219-222
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł