HE-3 EXCITATIONS IN DILUTE MIXTURES WITH HE-4

被引:13
作者
BHATT, RN
机构
[1] Bell Laboratories, Murray Hill
来源
PHYSICAL REVIEW B | 1978年 / 18卷 / 05期
关键词
D O I
10.1103/PhysRevB.18.2108
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The deviation of the He3 quasiparticle spectrum from the Landau-Pomeranchuk parabolic form, seen in neutron scattering, is shown to be accounted for by including the process of roton emission by He3 quasiparticles in a self-consistent calculation. The normal-fluid density and second-sound velocity (as functions of temperature and concentration of He3), calculated from this spectrum (which exhibits no He3 roton minimum) with no adjustable parameters, are in agreement with experiment. © 1978 The American Physical Society.
引用
收藏
页码:2108 / 2115
页数:8
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