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Characteristics of Polarisation in the Ramsauer-Townsend Minima in Strongly Coupled Semiclassic Plasmas

Authors
Lee, Myoung-JaeJung, Young-Dae
Issue Date
Nov-2017
Publisher
WALTER DE GRUYTER GMBH
Keywords
Quantum Shielding; Ramsauer-Townsend Minima; Strongly Coupled Semiclassic Plasmas
Citation
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, v.72, no.11, pp.995 - 1001
Indexed
SCIE
SCOPUS
Journal Title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
Volume
72
Number
11
Start Page
995
End Page
1001
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/8542
DOI
10.1515/zna-2017-0254
ISSN
0932-0784
Abstract
The influence of quantum shielding on the Ramsauer- Townsend phenomena for the total electron-atom polarisation collision cross-section is investigated in partially ionised strongly coupled semiclassic plasmas. The result shows that the quantum shielding effect changes the position of the Ramsauer energy in partially ionised strongly coupled plasmas. It is also found that the quantum shielding effect enhances the total electron-atom collision cross-section when the collision energy is greater than the Ramsauer energy; however, it suppresses the collision cross-section when the collision energy is smaller than the Ramsauer energy. In addition, it is shown that the plasma screening effect significantly changes the position of the Ramsauer energy and the influence of plasma screening on the magnitude of the collision cross-section is more significant near the Ramsauer energy domain. The variations of the Ramsauer energy and the collision cross-section due to the quantum shielding effect are also discussed.
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