An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures
Abstract 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 o...
Saved in:
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-09-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-52616-8 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832585579569610752 |
|---|---|
| author | Enyang Men Deyang Li Haiyang Zhang Jingxin Chen Zhihan Qiao Long Wei Zhaosheng Wang Chuanying Xi Dongsheng Song Yuhan Li Hyoungjeen Jeen Kai Chen Hong Zhu Lin Hao |
| author_facet | Enyang Men Deyang Li Haiyang Zhang Jingxin Chen Zhihan Qiao Long Wei Zhaosheng Wang Chuanying Xi Dongsheng Song Yuhan Li Hyoungjeen Jeen Kai Chen Hong Zhu Lin Hao |
| author_sort | Enyang Men |
| collection | DOAJ |
| description | Abstract 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. |
| format | Article |
| id | doaj-art-93fb24d2e8554c2fa52b95ef21a33b26 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-93fb24d2e8554c2fa52b95ef21a33b262025-01-26T12:40:11ZengNature PortfolioNature Communications2041-17232024-09-011511810.1038/s41467-024-52616-8An atomically controlled insulator-to-metal transition in iridate/manganite heterostructuresEnyang Men0Deyang Li1Haiyang Zhang2Jingxin Chen3Zhihan Qiao4Long Wei5Zhaosheng Wang6Chuanying Xi7Dongsheng Song8Yuhan Li9Hyoungjeen Jeen10Kai Chen11Hong Zhu12Lin Hao13Anhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesInformation Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui UniversitySchool of Physics and Astronomy, Beijing Normal UniversityDepartment of Physics, Pusan National UniversityNational Synchrotron Radiation Laboratory, University of Science and Technology of ChinaDepartment of Physics, University of Science and Technology of ChinaAnhui Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of SciencesAbstract 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.https://doi.org/10.1038/s41467-024-52616-8 |
| spellingShingle | Enyang Men Deyang Li Haiyang Zhang Jingxin Chen Zhihan Qiao Long Wei Zhaosheng Wang Chuanying Xi Dongsheng Song Yuhan Li Hyoungjeen Jeen Kai Chen Hong Zhu Lin Hao An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures Nature Communications |
| title | An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures |
| title_full | An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures |
| title_fullStr | An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures |
| title_full_unstemmed | An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures |
| title_short | An atomically controlled insulator-to-metal transition in iridate/manganite heterostructures |
| title_sort | atomically controlled insulator to metal transition in iridate manganite heterostructures |
| url | https://doi.org/10.1038/s41467-024-52616-8 |
| work_keys_str_mv | AT enyangmen anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT deyangli anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT haiyangzhang anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT jingxinchen anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT zhihanqiao anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT longwei anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT zhaoshengwang anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT chuanyingxi anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT dongshengsong anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT yuhanli anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT hyoungjeenjeen anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT kaichen anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT hongzhu anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT linhao anatomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT enyangmen atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT deyangli atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT haiyangzhang atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT jingxinchen atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT zhihanqiao atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT longwei atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT zhaoshengwang atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT chuanyingxi atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT dongshengsong atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT yuhanli atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT hyoungjeenjeen atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT kaichen atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT hongzhu atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures AT linhao atomicallycontrolledinsulatortometaltransitioniniridatemanganiteheterostructures |