# Enhancement of lanthanum ion conductivity by (40−2) plane orientation of polycrystalline La<sub>4</sub>Ga<sub>2</sub>O<sub>9</sub>

https://mdr.nims.go.jp/datasets/25c54449-cd5c-4b7b-bcbc-bbafe54fad1f

## File

- [133_25106.pdf](https://mdr.nims.go.jp/filesets/b9d0e26c-6b7c-4230-93e0-130359808b65/download) ([Detail](https://mdr.nims.go.jp/filesets/b9d0e26c-6b7c-4230-93e0-130359808b65.md))

## Id

25c54449-cd5c-4b7b-bcbc-bbafe54fad1f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-12T10:10:09.356099Z

## Updated at

2025-12-15T01:27:31.313346Z

## Published at

2025-12-18T10:08:26.153894Z

## Doi



## First published url

https://doi.org/10.2109/jcersj2.25106

## Date published

2025-11-01

## Recorded date published

2025

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Enhancement of lanthanum ion conductivity by (40−2) plane orientation of
    polycrystalline La<sub>4</sub>Ga<sub>2</sub>O<sub>9</sub>
  title_type: original
  lang: en

## Description

- description: To enhance the conductivity of La3+, the (402) plane aligned polycrystalline
    La4Ga2O9 (space group P21/c) was prepared by sintering at 1673 K for 2 h after
    colloidal processing under a high magnetic field. The (402) plane normal of each
    constituent crystal grain of the polycrystal was found to be almost parallel to
    the applied magnetic field. The texture fraction of (402), expressed as the Lotgering
    factor, was 0.235. A comparison was made of the conductivities parallel (σ∥) and
    perpendicular (σ⊥) to the aligned plane normal. The σ∥, ranging from 1.63 × 10−7
    S cm−1 at 623 K to 8.52 × 10−4 S cm−1 at 1073 K, demonstrated the highest value
    at each temperature, followed by σr and σ⊥ in that order. Since the a-axis is
    almost parallel to the (402) plane normal, the enhanced La conductivity of the
    La4Ga2O9 polycrystal has confirmed, for the first time, the prediction by the
    bond valence energy landscape method in the literature that La conduction is preferential
    along the a-axis.
  description_type: abstract
  lang: und

## Creator

- name: Kakeru Shimotsukasa
  role: author
- name: Daisuke Urushihara
  role: author
- name: Toru Asaka
  role: author
- name: Tohru S. Suzuki
  role: author
  orcid: https://orcid.org/0000-0001-9458-6863
  organization: National Institute for Materials Science
- name: Koichiro Fukuda
  role: author

## Contact agent



## Publisher

organization: Ceramic Society of Japan

## Managing organization



## Keyword

- subject: Lanthanum ion conductor
  schema: not_defined
- subject: Grain alignment
  schema: not_defined
- subject: Anisotropy
  schema: not_defined
- subject: Impedance spectroscopy
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of the Ceramic Society of Japan
  issn: '13486535'
  volume: '133'
  issue: '11'
  start_page: 657
  end_page: 662
  article_number: '25106'

## 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



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## Custom property



## Fileset

- id: b9d0e26c-6b7c-4230-93e0-130359808b65
  filename: 133_25106.pdf
  content_type: application/pdf
  size: 1511231
  md5: 64f0029db8591326281c797c6a0935ac

## Thumbnail

fileset_id: b9d0e26c-6b7c-4230-93e0-130359808b65
filename: 133_25106.pdf