通过X射线衍射,拉曼散射和红外光谱,研究了多晶Pr1-xSr1+x CoO4不同掺杂(x=0～0.5)的晶体结构.随着锶掺杂量的增加,拉曼散射谱的变化规律归因于沿c轴方向电声相互作用的增强.而红外强度随频率的相反变化来自ab面内电声相互作用的减弱.电阻率及热电势随掺杂量的增加发生了显著的变化,这是由于载流子浓度的增加.对于Pr1-xSr1+x CoO4样品,拉曼散射,红外吸收谱及电阻表现出特殊的性质.
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