%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Song_etal2018} {\textquotedblleft}\textit{Asymmetric Modulation on Exchange Field in a Graphene/BiFeO$_{3}$Heterostructure by External Magnetic Field}{\textquotedblright}. Song H-D, Wu Y-F, Yang X, Ren Z, Ke X, Kurttepeli M, Tendeloo GV, Liu D, Wu H-C, Yan B, Wu X, Duan C-G, Han G, Liao Z-M, Yu D, Nano letters \textbf{18}, 2435 (2018).   http://doi.org/10.1021/acs.nanolett.7b05480

\end{thebibliography}

\end{document}

