Magnetic behavior of nanocrystalline LaMn2Ge2

Details Magnetic behavior of nanocrystalline LaMn2Ge2 Magnetic behavior of nanocrystalline LaMn2Ge2

2008-06-12

arxiv.org/abs/0806.2030v1

Physics

Condensed Matter

Strongly Correlated Electrons

JMMM (Letters), in press

Scientific paper

The compound, LaMn2Ge2, crystallizing in ThCr2Si2-type tetragonal crystal structure, has been known to undergo ferromagnetic order below (T_C=) 326 K. In this article, we report the magnetic behavior of nanocrystalline form of this compound, obtained by high-energy ball-milling. T_C of this compound is reduced maginally 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.

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