Competitive conductive mechanism of interstitial Ag and oxygen vacancies in Ag/Ta2O5/Pt stack

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成果类型：

期刊论文

作者：

Hu, Qi;Fan, Zhiqiang;Huang, Anping*;Zhang, Xinjiang;Zhao, Rumeng;...

通讯作者：

Huang, Anping;Jiang, Xiangwei

作者机构：

[Zhang, Xinjiang; Shi, Hongliang; Dou, Wenzhen; Xiao, Zhisong; Ji, Yuhang; Zhao, Rumeng; Huang, Anping; Gao, Qin; Wang, Mei; Hu, Qi] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China.

[Jiang, Xiangwei; Fan, Zhiqiang] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China.

[Fan, Zhiqiang] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Hunan Prov Key Lab Flexible Elect Mat Genome Engn, Changsha 410114, Hunan, Peoples R China.

[Chu, Paul K.] City Univ Hong Kong, Dept Phys, Dept Mat Sci & Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China.

[Chu, Paul K.] City Univ Hong Kong, Dept Biomed Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China.

通讯机构：

[Huang, Anping] B

[Jiang, Xiangwei] C

Beihang Univ, Sch Phys, Beijing 100191, Peoples R China.

Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China.

语种：

英文

关键词：

Density functional theory;Ag atoms;Antagonistic interactions;Conductive mechanisms;Multicomponents;Non-equilibrium Green's function;Transmission coefficients;Oxygen vacancies

期刊：

Journal of Applied Physics

ISSN：

0021-8979

年：

2019

卷：

126

期：

页码：

065104

DOI：

10.1063/1.5109267

基金类别：

This research was jointly supported by the National Natural Science Foundation of China (NNSFC) (Grant Nos. 51872010, 11574017, 11574021, and 11604007), the Special Foundation of Beijing Municipal Science & Technology Commission (Grant No. Z161100000216149), and the City University of Hong Kong Strategic Research Grant (SRG) (No. 7005105).

机构署名：

本校为其他机构

院系归属：

物理与电子科学学院

摘要：

The transport properties of Ag/Ta2O5/Pt with coexisting interstitial Ag and oxygen vacancies are examined by density-functional theory and nonequilibrium Green's function calculation. The results show that the coexistence of interstitial Ag and oxygen vacancies results in a reduced transmission coefficient, implying an antagonistic interaction between Ag and oxygen vacancies. Interstitial Ag atoms may take the position of oxygen vacancies and block the oxygen vacancy channel. Alternatively, oxygen vacancies attract electrons from nearby Ag chan...

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Competitive conductive mechanism of interstitial Ag and oxygen vacancies in Ag/Ta2O5/Pt stack

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