Synthesis of Ln1-x-yMe'xMe''yMnO₃ (Ln:La, Nd; Me' and Me'':Sr, Pb) solid solutions using sol-gel method
A sol-gel method has been developed to synthesize the binary system solid solutions of rare-earth elements manganites (1-x)La₀,₆Pb₀,₄MnO₃- xNd₀,₆(Sr₀,₇Pb₀,₃)₀,₄MnO₃ (x = 0, 0.5 and 1.0). X-ray investigations show that the formation of solid solution phase for all x was observed after annealing of xe...
Збережено в:
| Видавець: | НТК «Інститут монокристалів» НАН України |
|---|---|
| Дата: | 2006 |
| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2006
|
| Назва видання: | Functional Materials |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/144384 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Цитувати: | Synthesis of Ln1-x-yMe'xMe''yMnO₃ (Ln:La, Nd; Me' and Me'':Sr, Pb) solid solutions using sol-gel method / T.A. Shitchkova, G.G. Emello, L.A. Bashkirov // Functional Materials. — 2006. — Т. 13, № 2. — С. 350-354. — Бібліогр.: 11 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | A sol-gel method has been developed to synthesize the binary system solid solutions of rare-earth elements manganites (1-x)La₀,₆Pb₀,₄MnO₃- xNd₀,₆(Sr₀,₇Pb₀,₃)₀,₄MnO₃ (x = 0, 0.5 and 1.0). X-ray investigations show that the formation of solid solution phase for all x was observed after annealing of xerogel powders (tablets) in air at 700°C for 1 h. At x = 0.5 and 1.0, the solid solutions have an orthorhombically distorted perovskite structure, whereas at x = 0 (pure La₀,₆Pb₀,₄MnO₃), the crystal lattice is hexagonal. The specific saturation magnetization at 100 K (σ₁₀₀) and the Curie temperature (Tc) for manganite solid solutions synthesized using the sol-gel method (annealing at 900-1100°C for 1 h) at any x exceed the corresponding characteristics of similar solid solutions obtained by ceramic method (after 6 h heating at 1200 K). |
|---|