# Massive Fluctuations in the Derivatives of Pair Distribution Function Minima and Maxima During the Glass Transition

https://mdr.nims.go.jp/datasets/788d282b-6176-4390-8cde-6405be9b4ff9

## File

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## Id

788d282b-6176-4390-8cde-6405be9b4ff9

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-18T05:33:01.235426Z

## Updated at

2026-05-18T05:59:01.407145Z

## Published at

2026-05-18T07:23:13.542467Z

## Doi



## First published url

https://doi.org/10.3390/met15080869

## Date published

2025-08-02

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Massive Fluctuations in the Derivatives of Pair Distribution Function Minima
    and Maxima During the Glass Transition
  title_type: original
  lang: en

## Description

- description: Parametric changes in the first coordination shell (FCS) of a vitreous
    metallic Pd42.5Cu30Ni7.5P20 alloy are analysed, aiming to confirm the identification
    of the glass transition temperature (Tg) via processing of XRD patterns utilising
    radial and pair distribution functions (RDFs and PDFs) and their evolution with
    temperature. The Wendt–Abraham empirical criterion of glass transition and its
    modifications are confirmed in line with previous works, which utilised the kink
    of the temperature dependences of the minima and maxima of both the PDF and the
    maxima of the structure factor S(q). Massive fluctuations are, however, identified
    near the Tg of the derivatives of the minima and maxima of the PDF and maxima
    of S(q), which adds value to understanding the glass transition in the system
    as a true second-order-like phase transformation in the non-equilibrium system
    of atoms.
  description_type: abstract
  lang: und

## Creator

- name: Michael I. Ojovan
  role: author
- name: Anh Khoa Augustin Lu
  role: author
  orcid: https://orcid.org/0000-0003-4702-0933
  organization: National Institute for Materials Science
- name: Dmitri V. Louzguine-Luzgin
  role: author

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: Glass transition
  schema: not_defined
- subject: Pair Distribution Function
  schema: not_defined
- subject: Fluctuations
  schema: not_defined
- subject: Bulk metallic glass
  schema: not_defined
- subject: Vitrification
  schema: not_defined
- subject: Wendt–Abraham criterion
  schema: not_defined
- subject: Structure factor
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-08-02

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Metals
  issn: '20754701'
  volume: '15'
  issue: '8'
  article_number: '869'

## Conference



## Related item



## Funding

- identifier: 24K01284
  funder_name: JSPS KAKENHI

## 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



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## Custom property



## Fileset

- id: d7ef16ce-3de2-4a14-82ab-913c0ebfdd1f
  filename: RDF_Ojovan_Metals_2025.pdf
  content_type: application/pdf
  size: 1859588
  md5: 5756eca6e2bddfc96938c6c2c78286df

## Thumbnail

fileset_id: d7ef16ce-3de2-4a14-82ab-913c0ebfdd1f
filename: RDF_Ojovan_Metals_2025.pdf