Photo-induced lattice softening of excited-state VO2

Masaki Hada; Kunio Okimura; Jiro Matsuo

doi:10.1063/1.3621900

Photo-induced lattice softening of excited-state VO₂

Masaki Hada, Kunio Okimura, Jiro Matsuo

Graduate School of Natural Science and Technology

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

26 Citations (Scopus)

Abstract

In this letter, we demonstrated the photoexcitation of metallic phase vanadium dioxide (VO₂) with time-resolved x-ray diffraction measurements. Through the photoexcitation, the metallic phase VO₂ transitioned to the similar transient state, which was presented in the insulator to metal phase transition in the time-scale of ∼10 ps. This transient state was accessed only by the photoexcitation and not through further thermal excitation. The presence of the transient state could be an important factor in any further application of the phase transition phenomena.

Original language	English
Article number	051903
Journal	Applied Physics Letters
Volume	99
Issue number	5
DOIs	https://doi.org/10.1063/1.3621900
Publication status	Published - Aug 1 2011

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3621900

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title = "Photo-induced lattice softening of excited-state VO2",

abstract = "In this letter, we demonstrated the photoexcitation of metallic phase vanadium dioxide (VO2) with time-resolved x-ray diffraction measurements. Through the photoexcitation, the metallic phase VO2 transitioned to the similar transient state, which was presented in the insulator to metal phase transition in the time-scale of ∼10 ps. This transient state was accessed only by the photoexcitation and not through further thermal excitation. The presence of the transient state could be an important factor in any further application of the phase transition phenomena.",

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note = "Funding Information: This work was partially supported by Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Agency (JST). The authors would like to acknowledge the discussions with Y. Hontani, T. Seki, and T. Aoki at Kyoto University and H. Zia and D. Mazurenko at Max Planck Research Department of Structural Dynamics, and thank R. Manory of editassociates.com for helping in preparing this material for publication. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

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N2 - In this letter, we demonstrated the photoexcitation of metallic phase vanadium dioxide (VO2) with time-resolved x-ray diffraction measurements. Through the photoexcitation, the metallic phase VO2 transitioned to the similar transient state, which was presented in the insulator to metal phase transition in the time-scale of ∼10 ps. This transient state was accessed only by the photoexcitation and not through further thermal excitation. The presence of the transient state could be an important factor in any further application of the phase transition phenomena.

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