Coupled magnetic and ferroelectric states in the distorted honeycomb system Fe${}_4$Ta${}_2$O${}_9$

Soumendra Nath Panja, Luminita Harnagea, Jitender Kumar +4

We report on the magnetic, thermodynamic, dielectric, and pyroelectric measurements on the hitherto unreported Fe${}_4$Ta${}_2$O${}_9$. This system is seen to exhibit a series of m…