Haichang Lu
The metal–insulator phase change in vanadium dioxide and its applications
Lu, Haichang; Clark, Stewart; Guo, Yuzheng; Robertson, John
Abstract
Vanadium dioxide is an unusual material that undergoes a first-order Metal–Insulator Transition (MIT) at 340 K, attracting considerable interest for its intrinsic properties and its potential applications. However, the nature of MIT has not been fully determined. Variants of density functional theory (DFT) have been widely used to study the MIT in pure and doped VO2. A full description of MIT is complicated by several related factors such as V–V dimerization, magnetic properties, and spin correlations. Each of these requires careful attention. In this Perspective, we explain why DFT fails, introduce a spin-pairing model of MIT, and propose a new way to estimate the transition temperature. We then use the method to study the doping and alloying process. Finally, we give an overview of some applications of MIT. This work aims to provide insight into and stimulate more research studies in this promising field.
Citation
Lu, H., Clark, S., Guo, Y., & Robertson, J. (2021). The metal–insulator phase change in vanadium dioxide and its applications. Journal of Applied Physics, 129(24), Article 240902. https://doi.org/10.1063/5.0027674
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 9, 2021 |
Online Publication Date | Jun 29, 2021 |
Publication Date | 2021 |
Deposit Date | Nov 26, 2021 |
Publicly Available Date | Jun 22, 2022 |
Journal | Journal of Applied Physics |
Print ISSN | 0021-8979 |
Electronic ISSN | 1089-7550 |
Publisher | American Institute of Physics |
Peer Reviewed | Peer Reviewed |
Volume | 129 |
Issue | 24 |
Article Number | 240902 |
DOI | https://doi.org/10.1063/5.0027674 |
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Copyright Statement
© 2021 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Lu, Haichang, Clark, Stewart, Guo, Yuzheng & Robertson, John (2021). The metal–insulator phase change in vanadium dioxide and its applications. Journal of Applied Physics 129(24): 240902] and may be found at https://doi.org/10.1063/5.0027674
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