- Tytuł:
- Effects of Ru Addition on the Superconducting Properties of the Eu-123 System
- Autorzy:
-
Škrátek, M.
Cigáň, A.
Dvurečenskij, A.
Majerová, M.
Bystrický, R.
Billik, P.
Maňka, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1384837.pdf
- Data publikacji:
- 2015-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.72.-h
74.25.Ha
75.30.Et
75.60.-d - Opis:
- Effects of the Ru addition on the structural and superconducting properties of the Eu-123 system were studied. Samples of the nominal composition $EuBa₂Cu_{3-x}Ru_{x}O_{7-δ}$ with x ranging from 0.0 to 0.7 were prepared by the solid state reaction technique from Eu₂O₃, BaCO₃, CuO and RuO₂ precursors at the temperature of 1050°C for 72 h in flowing oxygen and oxygen-annealed at 580°C for 24 h. X-ray diffraction data show the presence of another Ba-Eu-Ru-O phase, for x ≥ 0.03, in addition to the main superconducting phase. AC and DC magnetization characteristics were measured by the compensation method using the second-order SQUID gradiometer at ≈ 77 K and the QD SQUID magnetometer MPMS XL-7 at 20 K. The superconducting properties, $T_{c}$, $ΔT_{c}$, change only weakly up to x = 0.2, and magnetization M(H) deteriorates with an increasing Ru content.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 2; 225-227
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł