摘要
在详细的介绍了分形、无序材料的耦合系数在拉曼谱中的表征之后,又给出了反转系数(reversalcoefficient)的意义及在多壁纳米管拉曼谱中特有的表现形式。
During the past years, it is recognized that there are three parameters, i.e., frequency shift (ω), scattering intensity ( I ) and full width at half maximum(Γ) for Raman spectra, however, follow on, other two featured quantities which are depolarization ratio(ρ) and scattering cross section (σ,dσ/dω, and d^2σ/dσdω_S) have been given. Sometimes, it is called five kinds of parameter for Raman Spectroscopy. Recently, two new parameters have been presented for new materials again, in the fractal or disorder materials, multi walled nano?tubes (MWNT)materials and so on, they are coefficient of coupling C(ω),and reversal coefficient(P=I_(∩∩)/I_(∩∪)) on Raman spectra. In this review paper, we discussed the C(ω)in more detail, and the P was briefly provided.
出处
《物理学进展》
CSCD
北大核心
2004年第1期90-105,共16页
Progress In Physics
基金
国家"973"资助项目(001CB610404)
