The compound, LaMn2Ge2, crystallizing in ThCr 2Si2-type tetragonal crystal structure, has been known to undergo ferromagnetic order below (Tc= ) 326 K. In this article, we report the magnetic behavior of nanocrystalline form of this compound, obtained by high-energy ball milling. Tc of this compound is reduced marginally for the nanoform, whereas there is a significant reduction of the magnitude of the saturation magnetic moment with increasing milling time. The coercive field however increases with decreasing particle size. Thus, this work provides a route to tune these parameters by reducing the particle size in this ternary family. © 2008 Elsevier E.V. All rights reserved.

Suryanarayana Jammalamadaka

Department of Physics

S.D. Das

B.A. Chalke

E.V. Sampathkumaran

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Journal	Data powered by TypesetJournal of Magnetism and Magnetic Materials
Publisher	Data powered by TypesetElsevier
ISSN	03048853