The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
Mott Transition in VO 2 Revealed by Infrared Spectroscopy and Nano-Imaging
Open accessAbstract
Electrons in correlated insulators are prevented from conducting by Coulomb repulsion between them. When an insulator-to-metal transition is induced in a correlated insulator by doping or heating, the resulting conducting state can be radically different from that characterized by free electrons in conventional metals. We report on the electronic properties of a prototypical correlated insulator vanadium dioxide in which the metallic state can be induced by increasing temperature. Scanning near-field infrared microscopy allows us to directly image nanoscale metallic puddles that appear at the onset of the insulator-to-metal transition. In combination with far-field infrared spectroscopy, the data reveal the Mott transition with divergent quasi-particle mass in the metallic puddles. The experimental approach used sets the stage for investigations of charge dynamics on the nanoscale in other inhomogeneous correlated electron systems.
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Cited by
Flat optics with designer metasurfaces
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Nanophotonic engineering of far-field thermal emitters
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Metadata
- Authors
- 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., Kim, H.-T., & Basov, D. N.
- Venue
- Science
- Published
- 2007-12-14
- Volume
- 318
- Issue
- 5857
- Pages
- 1750-1753
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2047802539
- Cited by
- 1,539
- References
- 20
- FWCI
- 38.82
- Type
- journal article
- Language
- en
- Open access
- green
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- 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., Kim, H.-T., & Basov, D. N. (2007). Mott Transition in VO 2 Revealed by Infrared Spectroscopy and Nano-Imaging. Science. https://doi.org/10.1126/science.1150124
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