Structural, magnetic and dielectric properties have been studied for Yb2CoMnO6. Nano-crystalline sample of Yb2CoMnO6 synthesized by sol-gel method and structural analysis shows that the sample crystallizes in monoclinic crystal structure with \textit{P21/n} phase group. To understand the charge state of Co, Mn and Yb we have performed the XPS study. Magnetic study shows that the sample undergoes a paramagnetic to ferromagnetic phase transition around Tc∼56 K and an additional magnetic ordering at a lower temperature around 14 K due to ordering of Yb3+ magnetic ions. Temperature dependent Raman study reveals that spin-phonon interaction is present in this material. Further, we have studied the dielectric properties of this material. We observed that the material shows a relaxation behavior that obeys the thermally activated relaxation mechanism. Impedance spectroscopy reveals that the material shows non-Debye's behavior. AC conductivity study is performed to understand the conduction mechanics which involve the quantum mechanical tunneling phenomenon.
@article{arxiv.2003.07872,
title = {Structure, magnetic and dielectric properties in nano-crystalline Yb$_2$CoMnO$_6$},
author = {Ilyas Noor Bhatti and Imtiaz Noor Bhatti and Rabindra Nath Mahato and M. A. H. Ahsan},
journal= {arXiv preprint arXiv:2003.07872},
year = {2020}
}