Strain dependence of bonding and hybridization across the metal-insulator transition of VO 2

J. Laverock; L. F.J. Piper; A. R.H. Preston; B. Chen; J. McNulty; K. E. Smith; S. Kittiwatanakul; J. W. Lu; S. A. Wolf; P. A. Glans; J. H. Guo

doi:10.1103/PhysRevB.85.081104

Strain dependence of bonding and hybridization across the metal-insulator transition of VO ₂

J. Laverock
, L. F.J. Piper
, A. R.H. Preston
, B. Chen
, J. McNulty
, K. E. Smith
, S. Kittiwatanakul
, J. W. Lu
, S. A. Wolf
, P. A. Glans
, J. H. Guo

Pathology

Stony Brook University

Boston University
State University of New York Binghamton University
University of Virginia
Lawrence Berkeley National Laboratory

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO ₂. Changes in the strength of the V3d-O2p hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well described by dynamical mean-field theory, the V-O hybridization is found to have an unexpectedly strong dependence on strain that is not predicted by band theory, emphasizing the relevance of the O ion to the physics of VO ₂.

Original language	English
Article number	081104
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevB.85.081104
State	Published - Feb 10 2012

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Laverock, J., Piper, L. F. J., Preston, A. R. H., Chen, B., McNulty, J., Smith, K. E., Kittiwatanakul, S., Lu, J. W., Wolf, S. A., Glans, P. A., & Guo, J. H. (2012). Strain dependence of bonding and hybridization across the metal-insulator transition of VO ₂. Physical Review B - Condensed Matter and Materials Physics, 85(8), Article 081104. https://doi.org/10.1103/PhysRevB.85.081104

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title = "Strain dependence of bonding and hybridization across the metal-insulator transition of VO 2",

abstract = "Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO 2. Changes in the strength of the V3d-O2p hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well described by dynamical mean-field theory, the V-O hybridization is found to have an unexpectedly strong dependence on strain that is not predicted by band theory, emphasizing the relevance of the O ion to the physics of VO 2.",

author = "J. Laverock and Piper, \{L. F.J.\} and Preston, \{A. R.H.\} and B. Chen and J. McNulty and Smith, \{K. E.\} and S. Kittiwatanakul and Lu, \{J. W.\} and Wolf, \{S. A.\} and Glans, \{P. A.\} and Guo, \{J. H.\}",

year = "2012",

month = feb,

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doi = "10.1103/PhysRevB.85.081104",

language = "English",

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AU - Laverock, J.

AU - Piper, L. F.J.

AU - Preston, A. R.H.

AU - Chen, B.

AU - McNulty, J.

AU - Smith, K. E.

AU - Kittiwatanakul, S.

AU - Lu, J. W.

AU - Wolf, S. A.

AU - Glans, P. A.

AU - Guo, J. H.

PY - 2012/2/10

Y1 - 2012/2/10

N2 - Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO 2. Changes in the strength of the V3d-O2p hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well described by dynamical mean-field theory, the V-O hybridization is found to have an unexpectedly strong dependence on strain that is not predicted by band theory, emphasizing the relevance of the O ion to the physics of VO 2.

AB - Soft x-ray spectroscopy is used to investigate the strain dependence of the metal-insulator transition of VO 2. Changes in the strength of the V3d-O2p hybridization are observed across the transition and are linked to the structural distortion. Furthermore, although the V-V dimerization is well described by dynamical mean-field theory, the V-O hybridization is found to have an unexpectedly strong dependence on strain that is not predicted by band theory, emphasizing the relevance of the O ion to the physics of VO 2.

UR - https://www.scopus.com/pages/publications/84863272831

U2 - 10.1103/PhysRevB.85.081104

DO - 10.1103/PhysRevB.85.081104

M3 - Article

SN - 1098-0121

VL - 85

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 8

M1 - 081104

ER -

Strain dependence of bonding and hybridization across the metal-insulator transition of VO ₂

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