Results 21 to 30 of about 8,251 (220)

Pressure–Temperature Phase Diagram of Vanadium Dioxide [PDF]

open access: yesNano Letters, 2017
The complexity of strongly correlated electron physics in vanadium dioxide is exemplified as its rich phase diagrams of all kinds, which in turn shed light on the mechanisms behind its various phase transitions. In this work, we map out the hydrostatic pressure - temperature phase diagram of vanadium dioxide nanobeams by independently varying pressure ...
Yabin Chen   +10 more
openaire   +3 more sources

Wafer-scale freestanding vanadium dioxide film [PDF]

open access: yesScience Advances, 2021
Wafer-scale freestanding VO 2 films with high quality obtained in 6 min facilitate device integration.
He Ma   +9 more
openaire   +2 more sources

Switchable Metamaterial With Terahertz Buffering and Absorbing Performance

open access: yesIEEE Photonics Journal, 2021
A terahertz metamaterial with switching characteristics from optical buffering to absorbing performance is realized by incorporating a phase-change film of vanadium dioxide.
Chenxi Liu   +4 more
doaj   +1 more source

Terahertz metamaterials for broadband, high modulation depth modulator, and tunable dual-band absorber based on metal-vanadium dioxide hybrid structure

open access: yesAIP Advances, 2023
Terahertz metamaterials for broadband, high modulation depth modulating, and tunable dual-band absorbing are designed based on the similar composite structure of metal and vanadium dioxide film arrays. By using external excitation to induce the insulator-
Chenxi Liu   +3 more
doaj   +1 more source

Unraveling the Mott-Peierls intrigue in vanadium dioxide [PDF]

open access: yesPhysical Review Research, 2020
Vanadium dioxide is one of the most studied strongly correlated materials. Nonetheless, the intertwining between electronic correlation and lattice effects has precluded a comprehensive description of the rutile metal to monoclinic insulator transition, in turn triggering a longstanding "the chicken or the egg" debate about which comes first, the Mott ...
F. Grandi, A. Amaricci, M. Fabrizio
openaire   +3 more sources

Magnetic-field-induced insulator–metal transition in W-doped VO2 at 500 T

open access: yesNature Communications, 2020
Vanadium dioxide exhibits a metal-insulator (MI) transition. The mechanism driving this behaviour has long been a subject of debate. Here, the authors show that the MI transition in heavily doped vanadium dioxide can be driven by a magnetic field ...
Yasuhiro H. Matsuda   +6 more
doaj   +1 more source

Vanadium dioxide based plasmonic modulators

open access: yesOptics Express, 2012
Actively tunable metal-insulator-metal waveguides that employ vanadium dioxide films as the active medium are analyzed numerically. Vanadium dioxide exhibits strong contrast between the optical properties of its insulating and metallic phases. In particular, the large optical absorption in the metallic phase makes it straightforward to implement ...
Luke A, Sweatlock, Kenneth, Diest
openaire   +2 more sources

Scattering of vibrationally excited NO from vanadium dioxide [PDF]

open access: yes, 2022
This work investigates the surface dynamics of vanadium dioxide with nitric oxide in dependence of its metal-to-insulator transition (MIT) at 68 °C. At lower temperatures VO2 has a monoclinic lattice structure which has low electrical conductance. VO2(M) is therefore considered an insulator.
Meling, Artur   +8 more
openaire   +3 more sources

A Design of Vanadium Dioxide for Dynamic Color Gamut Modulation Based on Fano Resonance

open access: yesCrystals
In this paper, a design of vanadium dioxide for dynamic color gamut modulation based on Fano resonance is proposed. This approach facilitates color modulation by manipulating the phase transition state of vanadium dioxide.
Junyang Zhu   +7 more
doaj   +1 more source

Design of an On-Chip Plasmonic Modulator Based on Hybrid Orthogonal Junctions Using Vanadium Dioxide

open access: yesNanomaterials, 2021
We present the design of a plasmonic modulator based on hybrid orthogonal silver junctions using vanadium dioxide as the modulating material on a silicon-on-insulator.
Gregory Beti Tanyi   +3 more
doaj   +1 more source

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