globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1807457115
论文题名:
Metal–insulator-transition engineering by modulation tilt-control in perovskite nickelates for room temperature optical switching
作者: Liao Z.; Gauquelin N.; Green R.J.; Müller-Caspary K.; Lobato I.; Li L.; Van Aert S.; Verbeeck J.; Huijben M.; Grisolia M.N.; Rouco V.; El Hage R.; Villegas J.E.; Mercy A.; Bibes M.; Ghosez P.; Sawatzky G.A.; Rijnders G.; Koster G.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2018
卷: 115, 期:38
起始页码: 9515
结束页码: 9520
语种: 英语
英文关键词: Heterostructure ; Metal–insulator transition ; Octahedral rotation ; Structural modulation ; Transition metal oxide
Scopus关键词: metal ; nickel ; oxygen ; perovskite ; Article ; chemical bond ; chemical engineering ; chemical interaction ; chemical reaction ; chemical structure ; controlled study ; electric resistance ; magnetism ; physical chemistry ; priority journal ; room temperature
英文摘要: In transition metal perovskites ABO3, the physical properties are largely driven by the rotations of the BO6 octahedra, which can be tuned in thin films through strain and dimensionality control. However, both approaches have fundamental and practical limitations due to discrete and indirect variations in bond angles, bond lengths, and film symmetry by using commercially available substrates. Here, we introduce modulation tilt control as an approach to tune the ground state of perovskite oxide thin films by acting explicitly on the oxygen octahedra rotation modes—that is, directly on the bond angles. By intercalating the prototype SmNiO3 target material with a tilt-control layer, we cause the system to change the natural amplitude of a given rotation mode without affecting the interactions. In contrast to strain and dimensionality engineering, our method enables a continuous fine-tuning of the materials’ properties. This is achieved through two independent adjustable parameters: the nature of the tilt-control material (through its symmetry, elastic constants, and oxygen rotation angles), and the relative thicknesses of the target and tilt-control materials. As a result, a magnetic and electronic phase diagram can be obtained, normally only accessible by A-site element substitution, within the single SmNiO3 compound. With this unique approach, we successfully adjusted the metal–insulator transition (MIT) to room temperature to fulfill the desired conditions for optical switching applications. © 2018 National Academy of Sciences. All rights reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163658
Appears in Collections:气候变化与战略

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作者单位: Liao, Z., MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, Netherlands; Gauquelin, N., Electron Microscopy for Materials Science (EMAT), University of Antwerp, Antwerp, 2020, Belgium; Green, R.J., Quantum Matter Institute, University of British Columbia, Vancouver, V6T 1Z4, Canada, Department of Physics and Astronomy, University of British Columbia, Vancouver, V6T 1Z4, Canada, Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, S7N 5E2, Canada; Müller-Caspary, K., Electron Microscopy for Materials Science (EMAT), University of Antwerp, Antwerp, 2020, Belgium; Lobato, I., Electron Microscopy for Materials Science (EMAT), University of Antwerp, Antwerp, 2020, Belgium; Li, L., MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, Netherlands; Van Aert, S., Electron Microscopy for Materials Science (EMAT), University of Antwerp, Antwerp, 2020, Belgium; Verbeeck, J., Electron Microscopy for Materials Science (EMAT), University of Antwerp, Antwerp, 2020, Belgium; Huijben, M., MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, Netherlands; Grisolia, M.N., Unité Mixte de Physique CNRS/Thales, Université Paris-Saclay, Palaiseau, France; Rouco, V., Unité Mixte de Physique CNRS/Thales, Université Paris-Saclay, Palaiseau, France; El Hage, R., Unité Mixte de Physique CNRS/Thales, Université Paris-Saclay, Palaiseau, France; Villegas, J.E., Unité Mixte de Physique CNRS/Thales, Université Paris-Saclay, Palaiseau, France; Mercy, A., Theoretical Materials Physics, Quantum Materials Center (Q-MAT), Complex and Entangled Systems from Atoms to Materials (CESAM), Université de Liège, Liège, B-4000, Belgium; Bibes, M., Unité Mixte de Physique CNRS/Thales, Université Paris-Saclay, Palaiseau, France; Ghosez, P., Theoretical Materials Physics, Quantum Materials Center (Q-MAT), Complex and Entangled Systems from Atoms to Materials (CESAM), Université de Liège, Liège, B-4000, Belgium; Sawatzky, G.A., Quantum Matter Institute, University of British Columbia, Vancouver, V6T 1Z4, Canada, Department of Physics and Astronomy, University of British Columbia, Vancouver, V6T 1Z4, Canada; Rijnders, G., MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, Netherlands; Koster, G., MESA+ Institute for Nanotechnology, University of Twente, Enschede, 7500 AE, Netherlands

Recommended Citation:
Liao Z.,Gauquelin N.,Green R.J.,et al. Metal–insulator-transition engineering by modulation tilt-control in perovskite nickelates for room temperature optical switching[J]. Proceedings of the National Academy of Sciences of the United States of America,2018-01-01,115(38)
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