# Doping-induced variation of anomalous Hall effect in the magnetic Weyl-Kondo metal candidate                    <math>                      <mrow>                        <msub>                          <mi>CeCo</mi>                          <mrow>                            <mn>1</mn>                            <mo>−</mo>                            <mi>x</mi>                          </mrow>                        </msub>                        <msub>                          <mi>Fe</mi>                          <mi>x</mi>                        </msub>                        <msub>                          <mi>Ge</mi>                          <mn>3</mn>                        </msub>                      </mrow>                    </math>

https://mdr.nims.go.jp/datasets/da1ae039-c050-42db-849e-3e10f2442d1d

## File

- [CCFG_TFuruhashi_251022.pdf](https://mdr.nims.go.jp/filesets/8d9c242d-9c3d-4842-94e4-180f6361f53f/download) ([Detail](https://mdr.nims.go.jp/filesets/8d9c242d-9c3d-4842-94e4-180f6361f53f.md))

## Id

da1ae039-c050-42db-849e-3e10f2442d1d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-09T23:58:32.832610Z

## Updated at

2025-12-10T03:30:12.904412Z

## Published at

2025-12-10T03:23:54.349006Z

## Doi

https://doi.org/10.48505/nims.5983

## First published url

https://doi.org/10.1103/l7gy-27nl

## Date published

2025-12-05

## Recorded date published

2025-12

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: |-
    Doping-induced variation of anomalous Hall effect in the magnetic Weyl-Kondo metal candidate
                        <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
                          <mml:mrow>
                            <mml:msub>
                              <mml:mi>CeCo</mml:mi>
                              <mml:mrow>
                                <mml:mn>1</mml:mn>
                                <mml:mo>−</mml:mo>
                                <mml:mi>x</mml:mi>
                              </mml:mrow>
                            </mml:msub>
                            <mml:msub>
                              <mml:mi>Fe</mml:mi>
                              <mml:mi>x</mml:mi>
                            </mml:msub>
                            <mml:msub>
                              <mml:mi>Ge</mml:mi>
                              <mml:mn>3</mml:mn>
                            </mml:msub>
                          </mml:mrow>
                        </mml:math>
  title_type: original
  lang: en

## Description

- description: "We have investigated the doping-induced variation of magnetic and
    charge transport properties of\r\nsingle crystalline CeCo1 −xFexGe3 with a noncentrosymmetric
    tetragonal BaNiSn3-type structure.\r\nThe magnetization measurements revealed
    that, with increasing doping level x, the antiferromag-\r\nnetic phase for x =
    0 turns into a ferromagnetic one at x = 0.15, a cluster-glass like phase at\r\nx
    = 0.46, and eventually evolves into a paramagnetic phase above x = 0.67. For 0
    ≤x < 0.46\r\nwherein the electrical resistivity shows the Fermi liquid behavior,
    the coefficient of the T 2-term\r\nof resistivity is small for 0 ≤x ≤0.33 but increases
    sharply at around x ∼0.42, indicating the\r\nenhancement of density of state near
    the Fermi energy. Hall resistivity measurements indicate\r\nthat, at 2 K in the
    ferromagnetic phase, the anomalous Hall conductivity remains nearly constant\r\nover
    the range 0.15 ≤x ≤0.42 but markedly decreases with increasing x beyond 0.42.
    Notably, an\r\nanomalous Hall component that is not proportional to magnetization
    is observed for x ≥0.42. It\r\nis anticipated that the Berry curvature in momentum
    space significantly changes across the tran-\r\nsition from the ferromagnetic phase
    to cluster-glass like phase, driven by a change in the Kondo\r\nhybridization
    in the present materials"
  description_type: abstract
  lang: und

## Creator

- name: Tomomi Furuhashi
  role: author
  orcid: https://orcid.org/0009-0008-8017-5375
- name: Keisuke Hozawa
  role: author
- name: Yusuke Kozuka
  role: author
  orcid: https://orcid.org/0000-0001-7674-600X
- name: Yoshihiro Tsujimoto
  role: author
  orcid: https://orcid.org/0000-0003-2140-3362
- name: Kazunari Yamaura
  role: author
  orcid: https://orcid.org/0000-0003-0390-8244
- name: Jun Fujioka
  role: author
  orcid: https://orcid.org/0000-0003-1340-0268

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: CeCo1−xFexGe3
  schema: not_defined
- subject: Weyl-Kondo metal
  schema: not_defined
- subject: anomalous Hall effect
  schema: not_defined

## Rights

- description: "©2025 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

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## Embargo



## Journal

- title: Physical Review B
  issn: '24699950'
  volume: '112'
  issue: '24'
  article_number: '245116'

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## Related item



## Funding

- funder_name: University of Tsukuba
- identifier: 18H01171
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: 21K18813
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: 22H01177
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: 25K01657
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: JPMJFR203D
  funder_name: Fusion Oriented REsearch for disruptive Science and Technology
- identifier: JPMJSP2124
  funder_name: Support for Pioneering Research Initiated by the Next Generation

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## Fileset

- id: 8d9c242d-9c3d-4842-94e4-180f6361f53f
  filename: CCFG_TFuruhashi_251022.pdf
  content_type: application/pdf
  size: 2560070
  md5: f77e77790028bccd63db3fc68021818e

## Thumbnail

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filename: CCFG_TFuruhashi_251022.pdf