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Effect of size reduction on magnetic ordering in Bi0.2Sr0.8MnO3

Singh, Geetanjali and Bhat, SV (2014) Effect of size reduction on magnetic ordering in Bi0.2Sr0.8MnO3. In: JOURNAL OF APPLIED PHYSICS, 115 (17).

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Official URL: http://dx.doi.org/10.1063/1.4865885

Abstract

We present a comparative study of the temperature dependent magnetic properties and electron paramagnetic resonance parameters of nano and bulk samples of Bi0.2Sr0.8MnO3 (BSMO). Bulk BSMO is known to have a high T-N similar to 260K and robust charge ordering (T-CO similar to 360 K). We confirm that the bulk sample shows an antiferromagnetic transition around similar to 260K and a spin-glass transition similar to 40 K. For the nano sample, we see a clear ferromagnetic transition at around similar to 120 K. We conclude that spin glass state, which is present due to the co-existence of antiferromagnetic and ferromagnetic states in the bulk sample, is suppressed in the nano sample and ferromagnetism is induced instead. (C) 2014 AIP Publishing LLC.

Item Type: Journal Article
Additional Information: copyright for this article belongs to AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 09 Jun 2014 07:43
Last Modified: 09 Jun 2014 07:43
URI: http://eprints.iisc.ac.in/id/eprint/49215

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