Observation of anomalous dielectric properties in low-dimensional spin 1/2 $\alpha $-Cu$_{\mathrm{2}}$V$_{\mathrm{2}}$O$_{\mathrm{7}}$ magnetic system

Recently, low-dimensional magnetic systems have received much attention from both theoretical and experimental physics point of view due to their fascinating physical properties. In general, Cu$_{\mathrm{2}}$V$_{\mathrm{2}}$O$_{\mathrm{7\thinspace }}$can stabilize at least two sibling polymorphs named as $\alpha $ and $\beta $ phases. In $\alpha $ phase, Cu$_{\mathrm{2}}$V$_{\mathrm{2}}$O$_{\mathrm{7\thinspace }}$crystallized in orthorhombic with \textit{Fdd}2 space groups. The complex magnetic exchange interaction between the Cu-O-Cu ion within the intra and interchain creates the Dzyaloshinskii-Moriya interaction that leads to weak ferromagnetism below the magnetic transition temperature $T_{N}=$ 34 K. In this study, we present the results of multiple dielectric anomalies observed in the low dimensional spin 1/2 $\alpha $-Cu$_{\mathrm{2}}$V$_{\mathrm{2}}$O$_{\mathrm{7}}$ magnetic system. The observed dielectric signatures can be ascribed to the complex magnetic interaction $\alpha $-Cu$_{\mathrm{2}}$V$_{\mathrm{2}}$O$_{\mathrm{7}}$ system. Further, the chemical doping effect on the magnetic and multiferroic properties of $\alpha $-Cu$_{\mathrm{2}}$V$_{\mathrm{2}}$O$_{\mathrm{7\thinspace }}$is underway.