Выпуски

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2012

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том 10 / 

выпуск 3

 



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В. А. Турченко, В. П. Пащенко, А. В. Пащенко, Ю. Ф. Ревенко, В. Я. Сычева, В. А. Глазунова, З. Ф. Кравченко
«Структурные особенности, магнитные и резистивные свойства нанопорошковых лантан-стронциевых манганитов, полученных золь–гель-технологией »
447–455 (2012)

PACS numbers: 61.72. Ff, 61.72.Hh, 71.30.пЂ«h, 75.47.Lx, 75.50.Tt, 75.75.Cd, 81.07.Wx

Influence of temperature of synthesis on the size of particles, structural, magnetic and capacitance–resistance properties of nanopowder lanthanum–strontium manganites with an overstoichiometric manganite fabricated by sol–gel-technology is studied. Influence of synthesis temperature on the change of size of nanopowder particles is revealed. Type of crystal-structure changes from rhombohedrally distorted to pseudocube one with the decrease of both the average size of particles and the volume of a unit cell. Influence of size factor on the change of part of a ferromagnetic constituent, width of fluctuation area of ferro-–paramagnetic phase transition, value of specific resistance and magnetoresistive effect is also determined.

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