# Dielectric, magnetic and lattice dynamics properties of double perovskite (Ca0.5Mn1.5)MnWO6

https://mdr.nims.go.jp/datasets/bbf23689-8cec-449d-91f6-0290d877ce1f

## File

- [CMWO_Nguyen_rev4-for-MDR.docx](https://mdr.nims.go.jp/filesets/090abe8a-f84e-4d19-8506-2c0cc522b57a/download) ([Detail](https://mdr.nims.go.jp/filesets/090abe8a-f84e-4d19-8506-2c0cc522b57a.md))

## Id

bbf23689-8cec-449d-91f6-0290d877ce1f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-08-10T02:01:48.192002Z

## Updated at

2026-08-17T06:02:54.734108Z

## Published at

2026-08-17T07:29:50.493069Z

## Doi

https://doi.org/10.48505/nims.6454

## First published url

https://doi.org/10.1016/j.ceramint.2026.03.162

## Date published

2026-03-11

## Recorded date published

2026-5

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Dielectric, magnetic and lattice dynamics properties of double perovskite
    (Ca0.5Mn1.5)MnWO6
  title_type: original
  lang: en

## Description

- description: Recent dielectric and magnetic studies of (Ca0.5Mn1.5)MnWO6 ceramics
    [A.A. Belik, Chem. Mater. 36, 7604 (2024)] have classified this material as a
    rare hybrid multiferroic, with both antiferromagnetic and (anti)ferroelectric
    ordering occurring at the same temperature of 22 K. The pronounced dielectric
    anomaly observed at this temperature indicated that the structural change is primarily
    induced by a phonon soft mode and not by a spin arrangement, as is usually the
    case in type II multiferroics. However, our comprehensive investigation involving
    new ceramic samples as well as the sample from the above-mentioned reference does
    not support this conclusion. Low-temperature polarization measurements revealed
    no evidence of either ferroelectric or antiferroelectric order in both sample
    series. The dielectric permittivity exhibits only a slight change at the antiferromagnetic
    transition, and phonon modes observed in IR and Raman spectra show no indication
    of a symmetry change at low temperatures. In the new samples the Néel temperature
    is shifted to TN = 18 K. XRD, SEM, EDS and WDS analyses confirmed the composition
    (Ca0.5Mn1.5)MnWO6 of both ceramics, but also indicated a small amount (percentage
    points) of MnO and CaO impurities in the sample from the previous publication
    and Mn3O4, CaWO4 secondary phases (<4%) in the new ceramics. The differences in
    dielectric and magnetic properties of the two samples can therefore be explained
    by their different chemical purity. The small dielectric anomaly of the new sample
    at the antiferromagnetic transition temperature is explained by a spin-phonon
    coupling. We conclude that (Ca0.5Mn1.5)MnWO6 is not a multiferroic, but a paraelectric
    antiferromagnet.
  description_type: abstract
  lang: und

## Creator

- name: Hong Dang Nguyen
  role: author
- name: Alexei A. Belik
  role: author
  orcid: https://orcid.org/0000-0001-9031-2355
  organization: National Institute for Materials Science
- name: Petr Kužel
  role: author
- name: Fedir Borodavka
  role: author
- name: Maxim Savinov
  role: author
- name: Klára Beranová
  role: author
- name: Jan Drahokoupil
  role: author
- name: M. Jarošová
  role: author
- name: Petr Proschek
  role: author
- name: Bartoloměj Vaníček
  role: author
- name: Stanislav Kamba
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: double perovskites
  schema: not_defined
- subject: multiferroics
  schema: not_defined
- subject: high-pressure synthesis
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/
  date_licensed: 2026-03-11

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Ceramics International
  issn: '02728842'
  volume: '52'
  issue: '12'
  start_page: 20693
  end_page: 20701

## Conference



## Related item



## Funding

- identifier: 24-10791S
  funder_name: Czech Science Foundation
- funder_name: European Commission
- identifier: TERAFIT \u2013 CZ.02.01.01/00/22_008/0004594
  funder_name: Ministry of Education Youth and Sports of the Czech Republic

## 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: '090abe8a-f84e-4d19-8506-2c0cc522b57a'
  filename: CMWO_Nguyen_rev4-for-MDR.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 1704047
  md5: d681c986a5ac84d833d1927b9bd53d55

## Thumbnail

fileset_id: '090abe8a-f84e-4d19-8506-2c0cc522b57a'
filename: CMWO_Nguyen_rev4-for-MDR.docx