# Decomposition Behavior of GaN Under Solid and Ambient N2 Pressure

https://mdr.nims.go.jp/datasets/fd4603f0-dc90-47fe-8852-e1025141c4b4

## File

- [GaN_高圧下の分解温度_(MDR登録用).pdf](https://mdr.nims.go.jp/filesets/b036dfa7-babe-4dac-b243-a30d082eb615/download) ([Detail](https://mdr.nims.go.jp/filesets/b036dfa7-babe-4dac-b243-a30d082eb615.md))

## Id

fd4603f0-dc90-47fe-8852-e1025141c4b4

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-20T01:58:46.884496Z

## Updated at

2026-02-14T11:25:25.732414Z

## Published at

2026-08-11T23:30:04.701685Z

## Doi

https://doi.org/10.48505/nims.4693

## First published url

https://doi.org/10.1016/j.matlet.2024.137185

## Date published

2024-08-12

## Recorded date published

2024-11

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Decomposition Behavior of GaN Under Solid and Ambient N2 Pressure
  title_type: original
  lang: en

## Description

- description: The decomposition curve of GaN under solid pressure showed a considerably
    moderate increase compared to that under a N2 pressure. Such difference was attributed
    to the N2 dissolution in the Ga melt, where a high N2 pressure creates a supersaturated
    GaN state, which effectively prevent its decomposition. Conversely, under a solid
    pressure, the increase in the GaN decomposition temperature followed a common
    change in enthalpy, which is consistent with its typical thermodynamic behavior.
    The decomposition behavior of GaN under a solid pressure demonstrated its successful
    high-temperature annealing using a belt-type high-pressure apparatus. Therefore,
    this study provides valuable insights into the thermodynamic stability of GaN
    under different pressures, which is critical for optimizing high-performance GaN-based
    devices.
  description_type: abstract
  lang: en

## Creator

- name: Fumio Kawamura
  role: author
  orcid: https://orcid.org/0000-0003-0724-1475
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Hidenobu Murata
  role: author
  organization: JFCC
- name: Naoomi Yamada
  role: author
  organization: Chubu university

## Contact agent

- name: FUMIO KAWAMURA
  email: KAWAMURA.Fumio@nims.go.jp
  orcid: https://orcid.org/0000-0003-0724-1475
  organization: National Institute for Materials Science
  ror: https://ror.org/

## Publisher

organization: Elsevier

## Managing organization



## Keyword

- subject: GaN
  schema: not_defined
- subject: Decomposition
  schema: not_defined
- subject: High pressure
  schema: not_defined
- subject: Nitrogen atmosphere
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-08-12
end_date: 2026-08-12

## Journal

- title: Materials Letters
  issn: 0167577X
  volume: '374'
  article_number: '137185'

## 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



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: b036dfa7-babe-4dac-b243-a30d082eb615
  filename: GaN_高圧下の分解温度_(MDR登録用).pdf
  content_type: application/pdf
  size: 625907
  md5: e184ccc0cbef2a4d06ad89935a5b96ec

## Thumbnail

fileset_id: b036dfa7-babe-4dac-b243-a30d082eb615
filename: GaN_高圧下の分解温度_(MDR登録用).pdf