Low-energy electron inelastic mean free paths for liquid water

被引：41
|
作者：
Nguyen-Truong, Hieu T. [1 ,2 ]
机构：
[1] Ton Duc Thang Univ, Adv Inst Mat Sci, Theoret Phys Res Grp, Ho Chi Minh City, Vietnam
[2] Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City, Vietnam
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 15期
关键词：
liquid water; inelastic mean free path; stopping power; energy loss function; MODEL DIELECTRIC FUNCTION; X-RAY-SCATTERING; CROSS-SECTIONS; OPTICAL-DATA; ORGANIC-COMPOUNDS; STOPPING POWERS; PENN ALGORITHM; BETHE SURFACE; RANGE; SOLIDS;
D O I：
10.1088/1361-648X/aab40a
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We improve the Mermin-Penn algorithm (MPA) for determining the energy loss function (ELF) within the dielectric formalism. The present algorithm is applicable not only to real metals, but also to materials that have an energy gap in the excitation spectrum. Applying the improved MPA to liquid water, we show that the present algorithm is able to address the ELF overestimation at the energy gap, and the calculated results are in good agreement with experimental data.
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页数：7
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