# Quench-condensed hydrogen films studied by cryogenic time-of-flight secondary ion mass spectrometry

https://mdr.nims.go.jp/datasets/6bcb9970-3af3-4b82-a170-bb8cfb8d483f

## File

- [paper.pdf](https://mdr.nims.go.jp/filesets/66f38b8c-2c2b-4730-bc5c-61116b10daa6/download) ([Detail](https://mdr.nims.go.jp/filesets/66f38b8c-2c2b-4730-bc5c-61116b10daa6.md))

## Id

6bcb9970-3af3-4b82-a170-bb8cfb8d483f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-24T00:33:17.634476Z

## Updated at

2024-12-24T04:59:10.476627Z

## Published at

2024-12-24T23:30:42.632325Z

## Doi

https://doi.org/10.48505/nims.5213

## First published url

https://doi.org/10.1103/physrevb.110.085426

## Date published

2024-08-22

## Recorded date published

2024-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Quench-condensed hydrogen films studied by cryogenic time-of-flight secondary
    ion mass spectrometry
  title_type: original
  lang: en

## Description

- description: 'Surface melting of solidified hydrogen has attracted attention in
    the field of superfluidity, but the existence of surface melting of solid hydrogen
    itself is still controversial. In the present study, we developed cryogenic time-of-flight
    secondary mass spectrometry (ToF-SIMS) capable of detecting surface melting by
    selectively analyzing hydrogen on the outermost surface. Combined with low-energy
    ion scattering for well-defined film growth, we successfully investigated the
    surface structural transition of the quenched condensed hydrogen film grown on
    polycrystalline tungsten substrate below the triple point. It was found that the
    ToF-SIMS intensity variation of H$^+$ ions by increasing the temperature of the
    solid hydrogen film at a constant ramp rate (temperature-programmed ToF-SIMS)
    shows two prominent features: the increase accompanied by sublimation and the
    decrease due to the elimination of the hydrogen admolecule from the tungsten surface.
    Both features are well explained by the desorption of hydrogen molecules from
    the solid hydrogen surface. We observed no evidence of surface melting.'
  description_type: abstract
  lang: und

## Creator

- name: Taku T. Suzuki
  role: author
  orcid: https://orcid.org/0000-0001-6041-4297
- name: Soshi Iimura
  role: author
  orcid: https://orcid.org/0000-0003-3270-155X

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Hydrogen
  schema: not_defined
- subject: cryogenic TOF-SIMS
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

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## Embargo



## Journal

- title: Physical Review B
  issn: '24699950'
  volume: '110'
  issue: '8'
  article_number: '085426'

## Conference



## Related item



## Funding

- identifier: 15K13366
  funder_name: Japan Society for the Promotion of Science
- identifier: JPJ004596
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: 66f38b8c-2c2b-4730-bc5c-61116b10daa6
  filename: paper.pdf
  content_type: application/pdf
  size: 4020751
  md5: c040278e8b8b6d2c887c2eff5ba93faa

## Thumbnail

fileset_id: 66f38b8c-2c2b-4730-bc5c-61116b10daa6
filename: paper.pdf