Raman spectroscopy of NdFeO3 at pressures up to 11 GPa
HIGH PRESSURE RESEARCH(2015)
摘要
We report the theoretical and experimental study of evolution of the first-order Raman-active phonons in NdFeO3 with pressure up to 11 GPa at room temperature. With non-polarized light, we have observed 10 Raman-active modes. Our study confirmed no structural phase transition in the studied pressure range. We have calculated that weighted average Gruneisen parameter is ⟨gamma⟩ = 1.19.
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关键词
orthoferrites,Raman spectroscopy
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