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  Probing the electronic and local structural changes across the pressure-induced insulator-to-metal transition in VO2

Marini, C., Bendele, M., Joseph, B., Kantor, I., Mitrano, M., Mathon, O., et al. (2014). Probing the electronic and local structural changes across the pressure-induced insulator-to-metal transition in VO2. EPL, 108(3): 36003. doi:10.1209/0295-5075/108/36003.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-C14E-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-C14F-6
Genre: Journal Article

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Locator:
https://dx.doi.org/10.1209/0295-5075/108/36003 (Publisher version)
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 Creators:
Marini, C., Author
Bendele, M., Author
Joseph, B., Author
Kantor, I., Author
Mitrano, M.1, Author              
Mathon, O., Author
Baldini, M., Author
Malavasi, L., Author
Pascarelli, S., Author
Postorino, P., Author
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              

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Free keywords: X-ray absorption spectroscopy, EXAFS, NEXAFS, XANES, etc.; Metal-insulator transitions and other electronic transitions; Solid-solid transitions
 Abstract: Local and electronic structures of vanadium in VO2 are studied across the high-pressure insulator-to-metal (IMT) transition using V K-edge x-ray absorption spectroscopy. Unlike the temperature-induced IMT, pressure-induced metallization leads to only subtle changes in the V K-edge prepeak structure, indicating a different mechanism involving smaller electronic spectral weight transfer close to the chemical potential. Intriguingly, upon application of the hydrostatic pressure, the electronic structure begins to show substantial changes well before the occurrence of the IMT and the associated structural transition to an anisotropic compression of the monoclinic metallic phase.

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Language(s): eng - English
 Dates: 2014-08-212014-10-122014-10-31
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: BibTex Citekey: Marini2014
DOI: 10.1209/0295-5075/108/36003
 Degree: -

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Title: EPL
  Other : Europhysics Letters
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol : IoPP
Pages: - Volume / Issue: 108 (3) Sequence Number: 36003 Start / End Page: - Identifier: Other: 0295-5075
CoNE: /journals/resource/0295-5075