# Charge- and Orbital-Order Transitions in the A-Site-Ordered Quadruple Perovskite NdCuMn6O12

https://mdr.nims.go.jp/datasets/5ba4a21e-ef59-4a1e-a9f5-e46bd8ed08a1

## File

- [Inorganics-V14-174-NdCuMn6O12.pdf](https://mdr.nims.go.jp/filesets/e0c47cb6-1ca8-46b0-91b3-6f70eef9c040/download) ([Detail](https://mdr.nims.go.jp/filesets/e0c47cb6-1ca8-46b0-91b3-6f70eef9c040.md))

## Id

5ba4a21e-ef59-4a1e-a9f5-e46bd8ed08a1

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-09-02T06:14:24.125643Z

## Updated at

2026-09-02T07:14:01.007819Z

## Published at

2026-09-02T09:26:02.148900Z

## Doi



## First published url

https://doi.org/10.3390/inorganics14070174

## Date published

2026-06-26

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Charge- and Orbital-Order Transitions in the A-Site-Ordered Quadruple Perovskite
    NdCuMn6O12
  title_type: original
  lang: en

## Description

- description: "<p>AMn<sub>7</sub>O<sub>12</sub> perovskites (with A = divalent elements)
    show complex structural and magnetic transitions including incommensurate orbital
    density waves and coupled/decoupled modulated spin helicity originating from charge-ordered
    Mn<sup>3+</sup>/Mn<sup>4+</sup> cations with the 3:1 ratio at the B perovskite
    sites and unusual apically compressed Jahn&ndash;Teller distortions of MnO<sub>6</sub>
    octahedra. The same Mn<sup>3+</sup>:Mn<sup>4+</sup> ratio can be achieved in RCuMn<sub>6</sub>O<sub>12</sub>
    compositions, where R is a trivalent rare-earth cation. Therefore, the comparison
    in behavior of AMn<sub>7</sub>O<sub>12</sub> and RCuMn<sub>6</sub>O<sub>12</sub>
    is of interest. In this work, the A-site-ordered quadruple perovskite NdCuMn<sub>6</sub>O<sub>12</sub>
    was prepared by a high-pressure high-temperature method. Its structural properties
    were investigated by synchrotron powder X-ray diffraction between 100&nbsp;K and
    350&nbsp;K and laboratory powder X-ray diffraction between 5&nbsp;K and 300&nbsp;K.
    It shows a first-order structural phase transition from Im-3 symmetry (at high
    temperatures) to R-3 symmetry near 292&nbsp;K. The structural transition is accompanied
    by charge (Mn<sup>3+</sup>/Mn<sup>4+</sup>) and unusual orbital (on the Jahn&ndash;Teller
    active Mn<sup>3+</sup> cations located in MnO<sub>6</sub> octahedra) orders. However,
    no additional structural/orbital modulations were found at lower temperatures
    in comparison with AMn<sub>7</sub>O<sub>12</sub>. Magnetic properties were investigated
    by temperature- and field-dependent magnetization and specific heat measurements,
    where a ferrimagnetic transition was found near 120&nbsp;K. In addition, low-temperature
    magnetic anomalies were observed near 20&nbsp;K, probably originating from the
    Nd sublattice.</p>"
  description_type: abstract
  lang: und

## Creator

- name: Alexei A. Belik
  role: author
  orcid: https://orcid.org/0000-0001-9031-2355
  organization: National Institute for Materials Science
- name: Ran Liu
  role: author
  orcid: https://orcid.org/0000-0002-1659-2325
  organization: National Institute for Materials Science
- name: Lei Zhang
  role: author
  orcid: https://orcid.org/0000-0003-1173-4328
  organization: National Institute for Materials Science
- name: Yoshitaka Matsushita
  role: author
  orcid: https://orcid.org/0000-0002-4968-8905
  organization: National Institute for Materials Science
- name: Kazunari Yamaura
  role: author
  orcid: https://orcid.org/0000-0003-0390-8244
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: A-site-ordered perovskites
  schema: not_defined
- subject: high-pressure synthesis
  schema: not_defined
- subject: charge order
  schema: not_defined
- subject: orbital order
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2026-06-26

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Inorganics
  issn: '23046740'
  volume: '14'
  issue: '7'
  article_number: '174'

## Conference



## Related item



## Funding

- identifier: JP25K01657
  funder_name: Japan Society for the Promotion of Science

## 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: e0c47cb6-1ca8-46b0-91b3-6f70eef9c040
  filename: Inorganics-V14-174-NdCuMn6O12.pdf
  content_type: application/pdf
  size: 1572383
  md5: 8ab704c73a116e5dd759f8addcf9a1c5

## Thumbnail

fileset_id: e0c47cb6-1ca8-46b0-91b3-6f70eef9c040
filename: Inorganics-V14-174-NdCuMn6O12.pdf