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论文题目: Raman spectroscopic study of MnAl2O4 galaxite at various pressures and temperatures
全部作者: Zhai, Shuangmeng; Yin, Yuan; Shieh, Sean R.; Chang, Yun-Yuan; Xie, Tianqi; Xue, Weihong
第一作者: Zhai, Shuangmeng
联系作者: Zhai, Shuangmeng
刊物名称: PHYSICS AND CHEMISTRY OF MINERALS
发表年度: 2017
卷: 44
期: 3
页码: 163-170
摘要:
The vibrational properties of synthetic galaxite, MnAl2O4, were investigated at various pressures (0-29.7 GPa) and temperatures (80-973 K), respectively. The Raman frequencies of all observed bands for galaxite continuously increase with increasing pressure and decrease with increasing temperature, respectively. The quantitative analysis shows that the lowest frequency T (2g) mode has the smallest isothermal mode Gruneisen parameter. Combined with previous studies, the thermal Gruneisen parameter of galaxite is determined to be 1.23(5). The quantitative analysis of temperature dependences of Raman bands yields that the lowest frequency T (2g) mode has the largest isobaric mode Gruneisen parameter. The intrinsic anharmonic mode parameters are also calculated and nonzero, indicating an existence of intrinsic anharmonicity for MnAl2O4 spinel.
论文链接: https://link.springer.com/article/10.1007%2Fs00269-016-0845-2