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arXiv · 1708.07703

Magnetic and dielectric investigations of $\gamma$ - Fe${_2}$WO${_6}$

Soumendra Nath Panja·Jitender Kumar·Luminita Harnagea·A. K. Nigam·Sunil Nair
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Abstract

The magnetic, thermodynamic and dielectric properties of the $\gamma$ - Fe${_2}$WO${_6}$ system is reported. Crystallizing in the centrosymmetric $Pbcn$ space group, this particular polymorph exhibits a number of different magnetic transitions, all of which are seen to exhibit a finite magneto-dielectric coupling. At the lowest measured temperatures, the magnetic ground state appears to be glass-like, as evidenced by the waiting time dependence of the magnetic relaxation. Also reflected in the frequency dependent dielectric measurements, these signatures possibly arise as a consequence of the oxygen non-stoichiometry, which promotes an inhomogeneous magnetic and electronic ground state.

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Soumendra Nath Panja, Jitender Kumar, Luminita Harnagea, A. K. Nigam, Sunil Nair. 2017-08-25. Magnetic and dielectric investigations of $\gamma$ - Fe${_2}$WO${_6}$. https://arxiv.org/abs/1708.07703

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