Optical phonon behavior and magnetism of columbite Zn0.8Co0.2Nb2O6<xref rid="cpb_28_12_128104fn1" ref-type="fn">*</xref><fn id="cpb_28_12_128104fn1"><label>*</label>Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403704), the National Natural Science Foundation of China (Grant Nos. 11304113, 11474127, and 11574112), and the Fundamental Research Funds for the Central Universities of China.</fn>

Optical phonon behavior and magnetism of columbite Zn_0.8Co_0.2Nb₂O₆**

Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0403704), the National Natural Science Foundation of China (Grant Nos. 11304113, 11474127, and 11574112), and the Fundamental Research Funds for the Central Universities of China.

Li Liang¹, Wang Xiaohan¹, Liu Ying^{1, 2}, Li Fangfei¹, Zhou Qiang^{1, †}, Cui Tian¹

(a) Rietveld method refined XRD spectrum of Zn_0.8Co_0.2Nb₂O₆ powder samples, and (b) XRD² spectrum of the crystal wafer.