Electronic stopping power of slow H+ and He2+ ions in CdTe from first principle

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成果类型：

期刊论文

作者：

Li, Chang-kai;Mao, Fei;Fu, Yan-long;Liao, Bin;Ouyang, Xiao-ping;...

通讯作者：

Zhang, Feng-Shou

作者机构：

[Liao, Bin; Zhang, Feng-Shou; Fu, Yan-long; Li, Chang-kai] Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol & Mat Modificat, Minist Educ, Beijing 100875, Peoples R China.

[Liao, Bin; Zhang, Feng-Shou; Fu, Yan-long; Li, Chang-kai] Beijing Radiat Ctr, Beijing 100875, Peoples R China.

[Mao, Fei] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

[Ouyang, Xiao-ping] Northwest Inst Nucl Technol, Xian 710024, Peoples R China.

[Zhang, Feng-Shou] Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China.

通讯机构：

[Zhang, Feng-Shou] B

Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol & Mat Modificat, Minist Educ, Beijing 100875, Peoples R China.

语种：

英文

关键词：

Electronic stopping power;ED-TDDFT;Charge transfer;Velocity proportionality

期刊：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

ISSN：

0168-583X

年：

2017

卷：

392

页码：

51-57

DOI：

10.1016/j.nimb.2016.12.017

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11635003, 11025524, 11161130520]; National Basic Research Program of ChinaNational Basic Research Program of China [2010CB832903]; European Commissions 7th Framework Programme (FP7-PEOPLE-IRSES) [269131]

机构署名：

本校为其他机构

院系归属：

核科学技术学院

摘要：

We study through time-dependent density-functional theory (TDDFT) method the electronic stopping power of low-energy protons and helium ions moving through CdTe under the condition of channeling. The agreement between our calculated results and SRIM data roughly up to the stopping maximum for the proton along the < 1 0 0 > and < 1 1 1 > crystalline axes and for helium ions along < 1 0 0 > crystalline axis is satisfactory, which can be explained by the energy transfer mechanism that electron-hole excitation caused by ions in the solid. However, in the channel of < 1 1 1 > for helium ions, a tra...

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Electronic stopping power of slow H+ and He2+ ions in CdTe from first principle

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