Influence of heat exchange on magnetic susceptiblility of lanthanum cobaltates

An influence of thermal processes rate on temperature dependence of complex magnetic susceptibility x = x' — ix" in ceramic perovskites La₁₋ₓSrₓCoO₃ (x = 0.15; 0.25; 0.35) has been studied. At increasing cooling rate, the x value grew up as compared to the value obtained under slow (equili...

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Published in:Functional Materials
Date:2006
Main Authors: Kozlovskii, A.A., Khirnyi, V.F., Deineka, T.G.
Format: Article
Language:English
Published: НТК «Інститут монокристалів» НАН України 2006
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/135027
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Influence of heat exchange on magnetic susceptiblility of lanthanum cobaltates / A.A. Kozlovskii, V.F. Khirnyi, T.G. Deineka // Functional Materials. — 2006. — Т. 13, № 3. — С. 498-501. — Бібліогр.: 11 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:An influence of thermal processes rate on temperature dependence of complex magnetic susceptibility x = x' — ix" in ceramic perovskites La₁₋ₓSrₓCoO₃ (x = 0.15; 0.25; 0.35) has been studied. At increasing cooling rate, the x value grew up as compared to the value obtained under slow (equilibrium) temperature variation. This effect is explained by thermomagnetic component (∂M/∂T)(∂T / ∂t) of x value, which is due to strong dependence of magnetization M on temperature T near the Curie point.
ISSN:1027-5495