LIGHT SCATTERING FROM ROTONS IN LIQUID HELIUM

被引：108

作者：

GREYTAK, TJ

YAN, J

机构：

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 22卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.22.987

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the spectrum, intensity, and polarization of light Raman scattered from rotons and higher energy quasiparticle excitations in liquid He4 for temperatures between 1.16 and 2.14°K. The effect on the spectrum of the temperature-dependent energy and lifetime of the rotons is clearly visible. At a scattering angle of 90°the light is highly depolarized and about three orders of magnitude weaker than the Brillouin scatering from the phonons. © 1969 The American Physical Society.

引用

页码：987 / &

共 9 条

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[9]

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