Magnetic behavior of nanocrystalline LaMn2Ge2 |
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Authors: | S. Narayana Jammalamadaka Sitikantha D. DasB.A. Chalke E.V. Sampathkumaran |
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Affiliation: | Tata Institute of Fundamental Research, DCMPMS, Homi Bhabha Road, Colaba, Mumbai 400005, India |
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Abstract: | The compound, LaMn2Ge2, crystallizing in ThCr2Si2-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. |
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Keywords: | 73.63.Bd 75.50.Tt 75.30.Cr 75.50.Cc |
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