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arXiv · 1412.4194

Effect of dilution of both A- and B- sites on the multiferroic properties of spinal Mott insulators

Prashant Shahi·R. Singh·Shiv Kumar·A. Tiwari·A. Tripathi·J. Saha·S. Patnaik·A. K. Ghosh·Sandip Chatterjee
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Abstract

The structural, magnetic, electrical and transport properties of FeV2O4, by doping Li and Cr ions respectively in A and B sites, have been studied. Dilution of A-site by Li doping increases the ferri-magnetic ordering temperature and decreases the ferroelectric transition temperature. This also decreases the V-V distances which in effect increases the A-V coupling. This increased A-V coupling dominates over the decrease in A-V coupling due to doping of non-magnetic Li. On the other hand, Cr doping increases the ferri-magnetic ordering temperature but does not alter the ferroelectric transition temperature which is due to the fact that the polarization origin to the presence of almost non-substituted regions.

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Prashant Shahi, R. Singh, Shiv Kumar, A. Tiwari, A. Tripathi, J. Saha, S. Patnaik, A. K. Ghosh, Sandip Chatterjee. 2014-12-13. Effect of dilution of both A- and B- sites on the multiferroic properties of spinal Mott insulators. https://arxiv.org/abs/1412.4194

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