纳米三氧化二铬的拉曼散射

Raman Scattering of Nanoscale Chromic Oxides

纳米三氧化二铬的拉曼散射左健冯建平许存义（中国科学技术大学结构分析开放实验室安徽合肥２３００２６）吴若（江西师范大学物理系江西南昌３３００２７）ＲａｍａｎＳｃａｔｅｒｉｎｇｏｆＮａｎｏｓｃａｌｅＣｈｒｏｍｉｃＯｘｉｄｅｓＺｕｏＪｉａｎ，ＦｅｎｇＪｉａ...

Abstract The Raman spectra of nanometer sized chromic oxides particle at room temperature are reported. The results show that the correlation between the change in the Raman spectral features of nanometer sized chromic oxides and its crystal size is quite different from that of other nanoscale materials. It is demonstrated that the shifting and broadening of Raman spectral features are related to the defect structures produced by oxygen deficiency in the material and is not due to a grain size effect.