Raman phonons in multiferroic FeVO4 crystals*
Zhang An-Mina), Liu Kaia), Ji Jian-Tinga), He Chang-Zhenb), Tian Yonga), Jin Fenga), Zhang Qing-Ming†a)
       
Crystal structure of FeVO4. The structure consists of many polyhedrons of FeO6, FeO5, and VO4 which are connected by sharing the borders and vertexes.