CUED Publications database

Magnetocaloric effect in nano- and polycrystalline manganite La 0.7Ca0.3MnO3

Pȩkała, M and Drozd, V and Fagnard, JF and Vanderbemden, P and Ausloos, M (2008) Magnetocaloric effect in nano- and polycrystalline manganite La 0.7Ca0.3MnO3. Applied Physics A: Materials Science and Processing, 90. pp. 237-241. ISSN 0947-8396

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Abstract

La0.7Ca0.3MnO3 samples were prepared in nano- and polycrystalline forms by the sol-gel and solid state reaction methods, respectively, and structurally characterized by synchrotron X-ray diffraction. The magnetic properties determined by ac susceptibility and dc magnetization measurements are discussed. The magnetocaloric effect in this nanocrystalline manganite is spread over a broader temperature interval than in the polycrystalline case. The relative cooling power of the poly- and nanocrystalline manganites is used to evaluate a possible application for magnetic cooling below room temperature. © 2007 Springer-Verlag.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:09
Last Modified: 08 Dec 2014 02:23
DOI: 10.1007/s00339-007-4309-x