Positron Kinetics in Soft Condensed Matter

被引：42
|
作者：
White, R. D. [1 ]
Robson, R. E. [1 ,2 ]
机构：
[1] James Cook Univ, ARC Ctr Antimatter Matter Studies, Townsville, Qld 4810, Australia
[2] Australian Natl Univ, ARC Ctr Antimatter Matter Studies, Canberra, ACT 2600, Australia
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 23期
基金：
澳大利亚研究理事会;
关键词：
argon; liquid structure; liquid theory; NEGATIVE DIFFERENTIAL CONDUCTIVITY; VELOCITY DISTRIBUTION FUNCTION; TRANSPORT-COEFFICIENTS; ELECTRON SWARMS; LIQUID ARGON; GASES; EQUATIONS; FIELD;
D O I：
10.1103/PhysRevLett.102.230602
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We outline a new kinetic theory for positrons in soft matter, which blends together cross sections for positrons scattering from single molecules, with the structure function of the medium as a whole. Numerical results are presented for positrons in liquid argon, where negative differential conductivity arises from both positron formation and the structure of the medium.
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页数：4
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