Non-hydrodynamic collective modes in liquid metals and alloys

被引:46
作者
Bryk, T. [1 ,2 ]
机构
[1] Natl Acad Sci Ukraine, Inst Condensed Matter Phys, UA-79011 Lvov, Ukraine
[2] Natl Polytech Univ Lviv, Inst Appl Math & Fundamental Sci, UA-79013 Lvov, Ukraine
关键词
LENNARD-JONES FLUID; FAST SOUND; BINARY-LIQUIDS; NEUTRON-SCATTERING; GAS-MIXTURE; DYNAMICS; EXCITATIONS; HYDRODYNAMICS; DEPENDENCE; CROSSOVER;
D O I
10.1140/epjst/e2011-01419-x
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A short review of analytical and numerical results, obtained for collective dynamics in liquid metals and alloys within a theoretical approach of Generalized Collective Modes (GCM) is presented. The GCM approach permits to represent dynamic structure factors in wide ranges of wave numbers and frequencies as a sum of contributions from hydrodynamic and non-hydrodynamic processes. The origin of collective modes that make important contributions to dynamic structure factors beyond the hydrodynamic regime in liquid metals and alloys is discussed.
引用
收藏
页码:65 / 83
页数:19
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