论文库--中国科学院地球化学研究所

论文题目:	Anomalous phase transition of Bi- doped Zn2GeO4 investigated by electrical conductivity and Raman spectroscopy under high pressure
全部作者:	Wu, Lei; Dai, LiDong; Li, HePing; Hu, Haiying; Zhuang, YuKai; Liu, KaiXiang
第一作者:	Wu, Lei
联系作者:	DAI Lidong
刊物名称:	JOURNAL OF APPLIED PHYSICS
发表年度:	2017
卷:	121
期:	12
页码:
摘要:	We present a pressure-induced amorphization for pure and 0.5 mol. % Bi (3+) doped Zn2GeO4 samples, measured by high pressure Raman spectroscopy and high resolution transmission electron microscopy. Pressure-induced conductivity switching phenomena were discovered for both samples at around similar to 7.01 GPa and similar to 11.11 GPa, respectively, which closely correlated with the crystalline-to-amorphous transformation. The detailed conduction mechanism and the defect reaction process at high pressure indicate that the application of pressure could efficiently manipulate the microstructure and electrical performance of rare-earth doped polycrystalline materials, and therefore holds great promise for numerous applications in the future. Published by AIP Publishing.
论文链接:	https://aip.scitation.org/doi/10.1063/1.4979311