Nanoscale dynamics of hydrogen in <math>
  <msub>
    <mi>VO</mi>
    <mn>2</mn>
  </msub>
</math> studied by <math>
  <mrow>
    <mi>μ</mi>
    <mi>SR</mi>
  </mrow>
</math>

H. Okabe; M. Hiraishi; A. Koda; Y. Matsushita; T. Ohsawa; N. Ohashi; R. Kadono

doi:10.1103/physrevmaterials.8.024602

Article Nanoscale dynamics of hydrogen in

{VO}_{2}

studied by

μ SR

H. Okabe ; M. Hiraishi ; A. Koda ; Y. Matsushita (National Institute for Materials Science) ; T. Ohsawa (National Institute for Materials Science) ; N. Ohashi (National Institute for Materials Science) ; R. Kadono

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Citation

H. Okabe, M. Hiraishi, A. Koda, Y. Matsushita, T. Ohsawa, N. Ohashi, R. Kadono. Nanoscale dynamics of hydrogen in

{VO}_{2}

studied by

μ SR

. Physical Review Materials. 2024, 8 (2), 024602. https://doi.org/10.1103/physrevmaterials.8.024602

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Description:

(abstract)

Hydrogen dynamics in the nanoscale region of VO2 was investigated by muon spin rotation/relaxation ($$SR) technique. Positively charged muon acts as a light radioisotope of proton and can be used as a probe to explore the inside of materials from an atomic perspective. By analyzing the muon hopping rate and the spatial distribution of the 51V nuclear magnetic moments, we have identified two types of diffusion paths in VO2 (via oxygen-muon bonds or defects) and the potential of a high diffusion coefficient in the 10^−10 cm2/s range at ambient temperature. Our results provide valuable information for developing hydrogen-driven VO2-related electronic devices.

Rights:

Creative Commons BY Attribution 4.0 International

Keyword: μSR, VO2, Hydrogen

Date published: 2024-02-13

Publisher: American Physical Society (APS)

Journal:

Physical Review Materials (ISSN: 24759953) vol. 8 issue. 2 024602

Funding:

Ministry of Education, Culture, Sports, Science and Technology JPMXP0112101001
Ministry of Education, Culture, Sports, Science and Technology JPMXP1122683430
Japan Society for the Promotion of Science 20K05312
Japan Society for the Promotion of Science 19H05819

Manuscript type: Publisher's version (Version of record)

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First published URL: https://doi.org/10.1103/physrevmaterials.8.024602

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Updated at: 2024-08-10 08:30:17 +0900

Published on MDR: 2024-08-10 08:30:18 +0900

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