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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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 |
|---|---|
| Publication: | JOURNAL OF APPLIED PHYSICS |
| Publisher: | AMER INST PHYSICS |
| 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 |
| 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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