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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ovchinnikov S. G., Orlov Yu. S., Dudnikov V. A., Vereschagin S. N., Perov N. S.
Заглавие : Concentration dependence of the spin gap in solid solutions La1−xGdxCoO3−δ
Коллективы : Moscow International Symposium on Magnetism
, Siberian Branch of Russian Academy of Sciences [38]
Место публикации : J. Magn. Magn. Mater.: Elsevier Science, 2015. - Vol. 383. - P.162-165. - ISSN 0304, DOI 10.1016/j.jmmm.2014.11.083
Примечания : Cited References:20. - This work is supported by Siberian Branch of Russian Academy of Sciences (Projects no. 38), RFBR Grants nos. 13-02-00358, 13-02-00958, 13-02-01395, 14-02-31051, and 14-02-00186, and President of Russia Grant no. NSh-2886.2014.2.
Предметные рубрики: STATE TRANSITION
TEMPERATURE
LACOO3
GDCOO3
COBALTITES
Ключевые слова (''Своб.индексиров.''): strong correlated electron systems--spin crossover systems--magnetic--properties--solid solutions
Аннотация: The temperature dependence of the static magnetization of polycrystalline rare-earth cobaltites La1−xGdxCoO3−δ (x=0.2, 0.5, 1) was measured in a wide temperature range up to 900 K. The contribution from Co3+ ions at high temperatures to the magnetic susceptibility was obtained. The Birch–Murnaghan equation and the magnetic date were used to determine the spin gap Δ S as the difference between the energies of high-spin and low-spin states in these compounds.
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