# STEM in situ thermal wave observations for investigating thermal diffusivity in nanoscale materials and devices

https://mdr.nims.go.jp/datasets/9c236298-b7d9-4e67-8482-23a4cb2e5d89

## File

- [sciadv.adj3825 (4).pdf](https://mdr.nims.go.jp/filesets/c23ae2b0-1c5e-4edb-a1c9-befc08285824/download) ([Detail](https://mdr.nims.go.jp/filesets/c23ae2b0-1c5e-4edb-a1c9-befc08285824.md))
- [sciadv.adj3825_sm (5).pdf](https://mdr.nims.go.jp/filesets/20da9b48-6b33-4760-81d5-238e389065fa/download) ([Detail](https://mdr.nims.go.jp/filesets/20da9b48-6b33-4760-81d5-238e389065fa.md))
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## Id

9c236298-b7d9-4e67-8482-23a4cb2e5d89

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-19T06:50:29.957025Z

## Updated at

2024-08-27T07:30:43.857581Z

## Published at

2024-08-27T07:30:43.979615Z

## Doi



## First published url

https://doi.org/10.1126/sciadv.adj3825

## Date published

2024-01-12

## Recorded date published

2024-1-12

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: STEM in situ thermal wave observations for investigating thermal diffusivity
    in nanoscale materials and devices
  title_type: original
  lang: en

## Description

- description: Practical techniques to identify heat routes on the nanoscale are required
    for the thermal control of microelectronic, thermoelectric, and photonic devices.
    Nanoscale thermometry using various approaches has been extensively investigated,
    yet such a method has not been reported. We developed a method using thermal waves
    induced by a pulsed convergent electron beam in a scanning transmission electron
    microscopy (STEM) mode at room temperature. By quantifying the relative phase
    delay at each irradiated position, we could demonstrate the heat transport within
    the specimens with a spatial resolution of ~10 nm and temperature resolution of
    0.01 K. Phonon-surface scatterings were quantitatively confirmed due to the suppression
    of thermal diffusivity. The phonon-grain boundary scatterings and ballistic phonon
    transport near the pulsed convergent electron beam could be visualized.
  description_type: abstract
  lang: und

## Creator

- name: Hieu Duy Nguyen
  role: author
- name: Isamu Yamada
  role: author
- name: Toshiyuki Nishimura
  role: author
  orcid: https://orcid.org/0000-0002-2185-2849
  organization: National Institute for Materials Science
- name: Hong Pang
  role: author
  orcid: https://orcid.org/0000-0002-9286-082X
  organization: National Institute for Materials Science
- name: Hyunyong Cho
  role: author
  organization: National Institute for Materials Science
- name: Dai-Ming Tang
  role: author
  orcid: https://orcid.org/0000-0001-7136-7481
  organization: National Institute for Materials Science
- name: Jun Kikkawa
  role: author
  orcid: https://orcid.org/0000-0003-0659-1844
  organization: National Institute for Materials Science
- name: Masanori Mitome
  role: author
  orcid: https://orcid.org/0000-0003-1192-9838
  organization: National Institute for Materials Science
- name: Dmitri Golberg
  role: author
  orcid: https://orcid.org/0000-0003-2298-6539
  organization: National Institute for Materials Science
- name: Koji Kimoto
  role: author
  orcid: https://orcid.org/0000-0002-3927-0492
  organization: National Institute for Materials Science
- name: Takao Mori
  role: author
  orcid: https://orcid.org/0000-0003-2682-1846
  organization: National Institute for Materials Science
- name: Naoyuki Kawamoto
  role: author
  orcid: https://orcid.org/0000-0002-2022-3987
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: American Association for the Advancement of Science (AAAS)

## Managing organization



## Keyword

- subject: thermal diffusivity, pulsed electron beam, transmission electron microscopy,
    thermocouple, thermal conductivity
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Science Advances
  issn: '23752548'
  volume: '10'
  issue: '2'
  article_number: eadj3825

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



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## Custom property



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## Thumbnail

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