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An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures

文献类型：期刊论文

作者Men, Enyang2,3; Li, Deyang2,3; Zhang, Haiyang2,3; Chen, Jingxin2,3; Qiao, Zhihan2,3; Wei, Long4; Wang, Zhaosheng2; Xi, Chuanying2; Song, Dongsheng1; Li, Yuhan5
刊名NATURE COMMUNICATIONS
出版日期2024-09-28
卷号15
DOI10.1038/s41467-024-52616-8
通讯作者Chen, Kai(kaichen2021@ustc.edu.cn) ; Zhu, Hong(zhuh@ustc.edu.cn) ; Hao, Lin(haolin@hmfl.ac.cn)
英文摘要All-insulator heterostructures with an emerging metallicity are at the forefront of material science, which typically contain at least one band insulator while it is not necessary to be. Here we show emergent phenomena in a series of all-correlated-insulator heterostructures that composed of insulating CaIrO3 and insulating La0.67Sr0.33MnO3. We observed an intriguing insulator-to-metal transition, that depends delicately on the thickness of the iridate component. The simultaneous enhancements of magnetization, electric conductivity, and magnetoresistance effect indicate a percolation-type nature of the insulator-to-metal transition, with the percolation threshold can be reached at an exceptionally low volume fraction of the iridate. Such a drastic transition is induced by an interfacial charge transfer, which interestingly alters the electronic and crystalline structures of the bulk region rather than the limited ultrathin interface. We further showcased the central role of effective correlation in modulating the insulator-to-metal transition, by demonstrating that the critical thickness of iridate for triggering the metallic state can be systematically reduced down to a single unit-cell layer. Insulator-metal transitions driven by electronic correlations in oxide heterostructures have been widely studied, usually involving a correlated insulator and a band insulator. Here the authors study all-correlated-insulator heterostructures and observe a thickness-dependent insulator-metal transition.
WOS关键词MANGANITES ; PHYSICS ; SUPERCONDUCTIVITY ; INTERFACES
资助项目National Natural Science Foundation of China (National Science Foundation of China)[2022HSC-CIP005] ; Collaborative Innovation Program of Hefei Science Center, Chinese Academy of Sciences ; Chinese Academy of Sciences[2023YZGH01] ; HFIPS Director's Fund[AHHM-FX-2021-03] ; High Magnetic Field Laboratory of Anhui Province[11874359] ; High Magnetic Field Laboratory of Anhui Province[12104460] ; National Natural Science Foundation of China[s202305a12020005] ; Anhui Provincial Major ST Project[JZHKYPT-2021-08] ; Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001325053600004
出版者NATURE PORTFOLIO
资助机构National Natural Science Foundation of China (National Science Foundation of China) ; Collaborative Innovation Program of Hefei Science Center, Chinese Academy of Sciences ; Chinese Academy of Sciences ; HFIPS Director's Fund ; High Magnetic Field Laboratory of Anhui Province ; National Natural Science Foundation of China ; Anhui Provincial Major ST Project ; Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/135709]  
专题中国科学院合肥物质科学研究院
通讯作者Chen, Kai; Zhu, Hong; Hao, Lin
作者单位1.Anhui Univ, Inst Phys Sci & Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Key Lab Struct & Funct Regulat Hybrid Mat,Minist E, Hefei, Peoples R China
2.Chinese Acad Sci, Anhui Key Lab Low Energy Quantum Mat & Devices, High Magnet Field Lab, HFIPS, Hefei, Anhui, Peoples R China
3.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei, Peoples R China
4.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei, Peoples R China
5.Beijing Normal Univ, Dept Phys, Beijing, Peoples R China
6.Pusan Natl Univ, Dept Phys, Busan, South Korea
7.Univ Sci & Technol China, Dept Phys, Hefei, Peoples R China
推荐引用方式
GB/T 7714		 Men, Enyang,Li, Deyang,Zhang, Haiyang,et al. An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures[J]. NATURE COMMUNICATIONS,2024,15.
APA Men, Enyang.,Li, Deyang.,Zhang, Haiyang.,Chen, Jingxin.,Qiao, Zhihan.,...&Hao, Lin.(2024).An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures.NATURE COMMUNICATIONS,15.
MLA Men, Enyang,et al."An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures".NATURE COMMUNICATIONS 15(2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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