Banerjee, Shilpi ; Hajra, Partha ; Bhaumik, Asim ; Bandyopadhyay, Sri ; Chakravorty, Dipankar (2012) Large magnetodielectric effect in nickel zinc ferrite–lithium niobate nanocomposite Chemical Physics Letters, 541 . pp. 96-100. ISSN 0009-2614
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.cplett.2012.05.056
Abstract
Nanocomoposites of Ni0.5Zn0.5Fe2O4 (NZF) and LiNbO3 were synthesized. The average diameter of nanoparticles was 9.5 nm and lithium niobate had a thickness of ∼2.5 nm. The sample showed room temperature (RT) ferromagnetism. A magneto-dielectric coefficient of 20% was observed at a magnetic field of 0.5 T. This was explained using inhomogeneous conductor model. It arose due to NZF resistance decrease by about 35% for the applied magnetic field. Nanoindentation studies on the sample showed a creep strain rate (∼10−3 s−1) at RT. This was ascribed to a large grain boundary diffusion of Fe3+ ions in NZF phase.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 96495 |
| Deposited On: | 21 Dec 2012 10:05 |
| Last Modified: | 21 Dec 2012 10:05 |
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