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A two-dimensional electron gas based on a 5s oxide with high room-temperature mobility and strain sensitivity

文献类型：期刊论文

作者Feng, Zexin1; Qin, Peixin1; Yang, Yali2,3; Yan, Han1; Guo, Huixin1; Wang, Xiaoning1; Zhou, Xiaorong1; Han, Yuyan4; Yi, Jiabao5; Qi, Dongchen6,7
刊名ACTA MATERIALIA
出版日期2021-02-01
卷号204
关键词Two-dimensional electron gas 5s oxide BaSnO3 Piezoelectric strain modulation Memory devices
ISSN号1359-6454
DOI10.1016/j.actamat.2020.116516
通讯作者Liu, Zhiqi(zhiqi@buaa.edu.cn)
英文摘要The coupling of optical and electronic degrees of freedom together with quantum confinement in low-dimensional electron systems is particularly interesting for achieving exotic functionalities in strongly correlated oxide electronics. Recently, high room-temperature mobility has been achieved for a large bandgap transparent oxide - BaSnO3 upon extrinsic La or Sb doping, which has excited significant re-search attention. In this work, we report the realization of a two-dimensional electron gas (2DEG) on the surface of transparent BaSnO3 via oxygen vacancy creation, which exhibits a high carrier density of similar to 7.72 x 10(14) cm(-2) and a high room-temperature mobility of similar to 18 cm(2)center dot V-1 center dot s(-1). Such a 2DEG is rather sensitive to strain and a less than 0.1% in-plane biaxial compressive strain leads to a giant resistance enhancement of similar to 350% (more than 540 k Omega/square) at room temperature. Thus, this work creates a new path to exploring the physics of low-dimensional oxide electronics and devices applicable at room temperature. (c) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
WOS关键词PEROVSKITE ; INTERFACES ; SUPERCONDUCTIVITY ; FERROMAGNETISM ; COEXISTENCE
资助项目National Natural Science Foundation of China (NSFC)[11704018] ; National Natural Science Foundation of China (NSFC)[51822101] ; National Natural Science Foundation of China (NSFC)[51861135104] ; National Natural Science Foundation of China (NSFC)[51771009] ; National Natural Science Foundation of China[11825403] ; Special Funds for Major State Basic Research[2015CB921700] ; Qing Nian Ba Jian Program ; Future Fellowship (Australia Research Council)[FT160100205] ; Australian Research Council[FT160100207]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000603994900024
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China ; Special Funds for Major State Basic Research ; Qing Nian Ba Jian Program ; Future Fellowship (Australia Research Council) ; Australian Research Council
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/119980]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, Zhiqi
作者单位1.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
2.Fudan Univ, Key Lab Computat Phys Sci, Minist Educ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China
3.Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
4.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
5.Univ Newcastle, Global Innovat Ctr Adv Nanomat, Sch Engn, Callaghan, NSW 2308, Australia
6.Queensland Univ Technol, Sch Chem Phys & Mech Engn, Brisbane, Qld 4000, Australia
7.La Trobe Univ, La Trobe Inst Mol Sci, Dept Chem & Phys, Melbourne, Vic 3086, Australia
8.Natl Univ Singapore, Singapore Synchrotron Light Source, 5 Res Link, Singapore 117603, Singapore
9.Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
10.Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Zexin,Qin, Peixin,Yang, Yali,et al. A two-dimensional electron gas based on a 5s oxide with high room-temperature mobility and strain sensitivity[J]. ACTA MATERIALIA,2021,204.
APA Feng, Zexin.,Qin, Peixin.,Yang, Yali.,Yan, Han.,Guo, Huixin.,...&Liu, Zhiqi.(2021).A two-dimensional electron gas based on a 5s oxide with high room-temperature mobility and strain sensitivity.ACTA MATERIALIA,204.
MLA Feng, Zexin,et al."A two-dimensional electron gas based on a 5s oxide with high room-temperature mobility and strain sensitivity".ACTA MATERIALIA 204(2021).

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来源：合肥物质科学研究院

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