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Engineered Mott ground state in artificial LaNiO3/(NiO)n/LaNiO3 heterostructure
被引:0
作者:
Chen, Mingjing
[1
]
Ning, Xingkun
[1
]
Fu, Guangsheng
[1
]
Wang, Shufang
[1
]
Wang, Fei
[2
]
Yu, Tao
[3
]
Liu, Peng
[1
]
Wang, Jianglong
[1
]
Liu, Wei
[2
]
Zhang, Zhidong
[2
]
机构:
[1] Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
[3] South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China
基金:
中国国家自然科学基金;
关键词:
METAL-INSULATOR-TRANSITION;
ENERGY ELECTRON-DIFFRACTION;
THIN-FILMS;
GROWTH;
SUPERLATTICES;
NICKELATE;
D O I:
10.7567/APEX.11.075701
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Understanding and controlling the metal-insulator transition (MIT) can provide great opportunities for electronic devices. Here, artificial LaNiO3/(NiO)(n)/LaNiO3 has been synthesized. MIT temperatures have been tuned by changing the thickness of the artificial NiO insert layer. The Ni 2p core-level spectra and O K-edge have been investigated. The linear relationship between the hybridization T (or bandwidth W) and the MIT temperature has been clearly demonstrated. In this work, we realized the Mott ground state by modulating the parameters of T and the covalency W, which might be significant for the development of multifunctional materials. (C) 2018 The Japan Society of Applied Physics
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