POLYMER DEPENDENCE OF BOSON PEAK FREQUENCY STUDIED BY HOLE BURNING AND RAMAN SPECTROSCOPIES

被引：49

作者：

SAIKAN, S ^{[1
]}

KISHIDA, T ^{[1
]}

KANEMATSU, Y ^{[1
]}

AOTA, H ^{[1
]}

HARADA, A ^{[1
]}

KAMACHI, M ^{[1
]}

机构：

[1] OSAKA UNIV,FAC SCI,DEPT MACROMOLEC SCI,TOYONAKA,OSAKA 560,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 166卷 / 04期

关键词：

D O I：

10.1016/0009-2614(90)85043-C

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Raman scattering spectra in polymers and phonon sideband spectra observed in hole burning experiments show that the peak frequency of the phonon sideband spectrum corresponds to the low-frequency fracton edge, the so-called boson peak in amorphous materials. The polymer dependence of the phonon sideband spectra indicates that the polymer which has hydrogen bonding has a higher boson peak frequency. The absence of a high-frequency fracton edge in the phonon sideband spectra, which has been observed in the Raman spectra, is attributed to the different frequency dependence of localized-electron-phonon coupling versus dielectric modulation in Raman scattering. © 1990.

引用

页码：358 / 362

页数：5

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