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Evidence of a Pressure-Induced Metallization Process in MonoclinicVO2
Open accessAbstract
Raman and combined infrared transmission and reflectivity measurements were carried out at room temperature (RT) on monoclinic VO2 over the 0-19 GPa and 0-14 GPa pressure ranges. Both lattice dynamics and optical gap show a remarkable stability up to P* approximately 10 GPa whereas subtle modifications of V ion arrangements within the monoclinic lattice, together with the onset of a metallization process via band gap filling, are observed for P >P*. Differently from P=0, where the VO2 metallic phase is found only in conjunction with the rutile structure above 340 K, a new RT metallic phase within a monoclinic structure appears accessible in the high pressure regime.
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Cited by
Mott Transition in VO 2 Revealed by Infrared Spectroscopy and Nano-Imaging
Qazilbash, M. M., Brehm, M., Chae, B.-G., Ho, P.-C., Andreev, G. O., Kim, B.-J., Yun, S. J., Balatsky, A. V., Maple, M. B., Keilmann, F., et al. (2007) · Science · doi:10.1126/science.1150124 · Cited by 1,539
Memory effects in complex materials and nanoscale systems
Pershin, Y. V., & Di Ventra, M. (2011) · Advances In Physics · doi:10.1080/00018732.2010.544961 · Cited by 823
Metadata
- Authors
- Arcangeletti, E., Baldassarre, L., Di Castro, D., Lupi, S., Malavasi, L., Marini, C., Perucchi, A., & Postorino, P.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2007-05-10
- Volume
- 98
- Issue
- 19
- Pages
- 196406-196406
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2064376420
- Cited by
- 201
- References
- 0
- FWCI
- 9.32
- Type
- journal article
- Language
- en
- Open access
- green
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