Orientation-dependent retarding force of a three-dimensional degenerate electron gas for slow homonuclear trimers

被引：0

作者：

Osmani, Orkhan ^{[1
]}

Nagy, Istvan ^{[1
,2
]}

机构：

[1] Donostia Int Phys Ctr DIPC, E-20018 San Sebastian, Spain

[2] Tech Univ Budapest, Inst Phys, Dept Theoret Phys, H-1521 Budapest, Hungary

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 04期

关键词：

MOLECULES; ENERGY;

D O I：

10.1103/PhysRevA.86.042901

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A theoretical study is presented on the orientation-dependent retarding force experienced by a slow homonuclear linear trimer moving at arbitrary alignment with the direction of its flight in a three-dimensional degenerate electron gas of metallic densities. We apply a standard multiple-scattering method for elastic scattering of independent electrons off a three-center system in a screening environment. These centers are modeled by short-range auxiliary potentials and thus they are characterized by an effective s-type phase shift eta. Within this framework for the orientation-dependent retarding force, the interplay of wave interference and multiple scattering is analyzed in a comparative manner for a realistic set of the input parameters. By allowing a restricted variation in the polar angle between the linear multicenter orientation and its velocity direction, a reasonable agreement with data obtained by a slow carbon trimer is established.

引用

页数：4

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