Nanoscale imaging of the electronic and structural transitions in vanadium dioxide

Abstract

We investigate the electronic and structural changes at the nanoscale in vanadium dioxide (VO2) in the vicinity of its thermally driven phase transition. Both electronic and structural changes exhibit phase coexistence leading to percolation. In addition, we observe a dichotomy between the local electronic and structural transitions. Nanoscale x-ray diffraction reveals local, non-monotonic switching of the lattice structure, a phenomenon that is not seen in the electronic insulator-to-metal transition mapped by near-field infrared microscopy.

23 pages including 7 figures

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Cited by in corpus (32)

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• Near-field spectroscopy of silicon dioxide thin films
• Sequential Electronic and Structural Transitions in VO2 Observed Using X-ray Absorption Spectromicroscopy
• Current oscillations in Vanadium Dioxide: evidence for electrically triggered percolation avalanches
• Correlation-driven insulator-metal transition in near-ideal vanadium dioxide films
• Triply degenerate nodal points in RERh${}_6$Ge${}_4$ (RE=Y, La, Lu)
• Ultrafast THz Field Control of Electronic and Structural Interactions in Vanadium Dioxide
• Structural and Electronic Recovery Pathways of a Photoexcited Ultrathin VO2 Film
• Molecular Quantum Materials: Electronic Phases and Charge Dynamics in Two-Dimensional Organic Solids
• Mesoscopic structural phase progression in photo-excited VO2 revealed by time-resolved x-ray diffraction microscopy
• Dynamic conductivity scaling in photoexcited V2O3 thin films
• Programmable Mechanical Resonances in MEMS by Localized Joule Heating of Phase Change Materials
• Does VO${}_2$ Host a Transient Monoclinic Metallic Phase?
• Evidence for a Peierls phase-transition in a three-dimensional multiple charge-density waves solid
• Direct observation of the M2 phase with its Mott transition in a VO${}_2$ film
• Anisotropic compression in the high pressure regime of pure and Cr-doped vanadium dioxide
• The phase transition in VO2 probed using x-ray, visible and infrared radiations
• Multiple crossovers and coherent states in a Mott-Peierls insulator
• Thermopower analysis of metal-insulator transition temperature modulations in vanadium dioxide thin films with lattice distortion
• Nanoscale spectroscopic imaging of phase separation in a correlated material by resonant X-ray holography
• Directional detection of dark matter with diamond
• Thickness dependence of electronic and crystal structures in VO${}_2$ ultrathin films: suppression of the collaborative Mott-Peierls transition
• Phase coexistence at the first-order Mott-transition revealed by pressure-dependent dielectric spectroscopy of $\kappa$-(BEDT-TTF)${}_2$Cu${}_2$(CN)${}_3$
• Resistance noise at the metal-insulator transition in thermochromic VO2 films
• Mott materials: unsuccessful metals with a bright future
• Probing the quantum phase transition in Mott insulator BaCoS_2 tuned by pressure and Ni-substitution
• Emergence of metallic monoclinic states of VO${}_2$ films induced by K deposition
• The isotropic Compton profile difference across the phase transition of VO${}_2$
• Electronic phase diagram of Cr-doped VO2 epitaxial films studied by in situ photoemission spectroscopy
• Direct visualization of percolating metal-insulator transition in V2O3 using scanning microwave impedance microscopy
• Interface-induced collective phase transition in VO2-based bilayers studied by layer selective spectroscopy
• Progress of microscopic thermoelectric effects studied by micro-and nano-thermometric techniques