Giant texturing effect in multiferroic MnWO$_4$ polycrystals

Details Giant texturing effect in multiferroic MnWO$_4$ polycrystals Giant texturing effect in multiferroic MnWO$_4$ polycrystals

2012-04-16

arxiv.org/abs/1204.3405v1

Physics

Condensed Matter

Materials Science

8 Pages, 8 Figures

Scientific paper

Different methods of texturing polycrystalline materials are developed over years to use/probe anisotropic material properties with relative ease, where complicated and expensive single crystal growth processes could be avoided. In this paper, particle morphology assisted texturing in multiferroic MnWO$_4$ has been discussed. Detailed powder x-ray diffraction vis-a-vis scanning electron microscopic studies on differently annealed and processed samples have been employed to probe the giant texturing effect in powdered MnWO$_4$. A quantitative measure of the texturing has been carried out by means of Rietveld analysis technique. Qualitative presentation of magnetic and dielectric data on textured pellet demonstrated the development of clear anisotropic physical properties in polycrystalline pellets. Finally, we established that the highly anisotropic plate like particles are formed due to easy cleavage of the significantly large crystalline grains.

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