- Tytuł:
- Mechanisms of Substituting Quadrivalent Ions Influence on the Properties of La-Sr Manganites
- Autorzy:
-
Merkulov, D.
Badelin, A.
Estemirova, S.
Karpasyuk, V. - Powiązania:
- https://bibliotekanauki.pl/articles/1385084.pdf
- Data publikacji:
- 2015-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.30.-m
75.47.-m
75.47.Gk
75.47.Lx
75.50.Pp - Opis:
- Regularities of the influence of quadrivalent ions and oxygen concentrations on the structural characteristics, saturation magnetization, Curie point, temperature dependence of electrical conductance of ceramic manganites $La_{1-c-x}Sr_{c+x}Mn_{1-x}Me^{4+x}O_{3+γ}$ (Me = Ti, Ge; 0.17 ≤ c ≤ 0.35; 0.025 ≤ x ≤ 0.125) were established. The relation between experimental data on lattice parameters, electromagnetic properties and crystal chemistry characteristics (nonstoichiometry index, concentrations of ions residing at different charge states) was determined using the modified model of effective cation-anion distances. The data obtained provide some evidence that in Ti-containing manganites when Sr concentration is more than 0.375, single-charged oxygen ions can arise after reductive annealing.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 2; 248-250
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł