| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Microscopic Magnetic Origin of Rhombohedral Distortion in NiO |
| Guangmeng He1,2†, Huimin Zhang1,2†, Jinyang Ni1,2, Boyu Liu1,2, Changsong Xu1,2*, and Hongjun Xiang1,2* |
1Key Laboratory of Computational Physical Sciences (Ministry of Education), Institute of Computational Physical Sciences, and Department of Physics, Fudan University, Shanghai 200433, China
2Shanghai Qi Zhi Institute, Shanghai 200030, China
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| Cite this article: |
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Guangmeng He, Huimin Zhang, Jinyang Ni et al 2022 Chin. Phys. Lett. 39 067501 |
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Abstract Numerous investigations have been conducted to explore the structural phase transition in antiferromagnetic 3$d$ transition metal monoxides accompanied by appearance of magnetic phase transition. However, how the spins induce distortion in the high symmetric structure has not yet been fully understood. In this study, the monoxide NiO is used as an example to investigate what lowers the structural symmetry. By comparing two different magnetic structures, our results reveal that the spin–lattice coupling is responsible for such a structural distortion. Then, a spin–lattice model, including the strain component, is constructed to simulate the transition procedure. Moreover, the results from the first-principles calculations are used to compare with our model results. Both first-principles calculations and model simulations clarify the structural phase transition caused by a unique magnetic arrangement.
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Received: 21 March 2022
Editors' Suggestion
Published: 29 May 2022
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