Temperature Dependent Raman Studies of Pr2Zr2O7 Single Crystal

3rd International Conference on Functional Materials Science 2016

Jatmoko, K.D.^1 ; Prasetyo, A.^1 ; Suendo, V.^1 ; Nakatsuji, S.^2 ; Nugroho, A.A.^1,2

Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl, Ganesha 10, Bandung, Indonesia^1

Institute for Solid State Physics, University of Tokyo, Kashiwa

277-85881, Japan^2

关键词: Heating up;    Polarization measurements;    Pyrochlore compounds;    Temperature range;    Temperature-dependent raman;    Vacant sites;    Vibration modes;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/196/1/012051/pdf
DOI  :  10.1088/1757-899X/196/1/012051

来源: IOP

【 摘 要 】

The temperature-dependent Raman studies of Pr2Zr2O7has been performed on single crystals samples in the temperature range from 80 K to 820 K. By using polarization measurement, the vibration modes of A1g, Eg, and 4T2ghave been assigned on 295.9 cm-1, 497.3 cm-1, and 102.4 cm-1, 309.2 cm-1, 670.6 cm-1, 878 cm-1, respectively. The ambiguity vibration mode around 300 cm-1in pyrochlore compounds can be resolved. The 380 cm-1mode showed sharpening upon heating up from 370 K which support the present of Oxygen distortion towards vacant site.