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Title: Competition between strain and dimensionality effects on the electronic phase transitions in NdNiO3 films
Authors: Wang, Le
Ju, Sheng
You, Lu
Qi, Yajun
Guo, Yu-wei
Ren, Peng
Zhou, Yang
Wang, Junling
Issue Date: 2015
Source: Wang, L., Ju, S., You, L., Qi, Y., Guo, Y., Ren, P., et al.(2015). Competition between strain and dimensionality effects on the electronic phase transitions in NdNiO3 films. Scientific Reports, 5, 18707-.
Series/Report no.: Scientific Reports
Abstract: Transition metal oxides host an array of exotic electronic phases, including superconductivity, ferroelectricity, quantum spin liquid and Mott insulators. Their extreme sensitivity to external stimuli enables various routes to manipulate the ground state, which greatly improves our understanding of the physics involved. Here, we report the competition between strain and dimensionality effects on the phase evolution in high quality NdNiO3 films down to several unit cells. While both compressive and tensile strains increase the Ni 3d band width and favor the metallic phase, reducing dimensionality, on the other hand, decreases the covalent band width and favors the insulating phase in NdNiO3. The experimental observations are well supported by ab initio calculations and improve our understanding of the electronic behavior in strongly correlated electron systems.
ISSN: 2045-2322
DOI: 10.1038/srep18707
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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