# Energy filtering–induced ultrahigh thermoelectric power factors in Ni3Ge

https://mdr.nims.go.jp/datasets/73c2aa3b-d8b6-4b3a-bbb4-64a585189c17

## File

- [sciadv.adv7113.pdf](https://mdr.nims.go.jp/filesets/d62e8445-a2c3-4984-a774-9ee0a24525fb/download) ([Detail](https://mdr.nims.go.jp/filesets/d62e8445-a2c3-4984-a774-9ee0a24525fb.md))

## Id

73c2aa3b-d8b6-4b3a-bbb4-64a585189c17

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-07T08:17:08.154631Z

## Updated at

2025-08-18T07:30:21.588057Z

## Published at

2025-08-18T07:21:28.937563Z

## Doi



## First published url

https://doi.org/10.1126/sciadv.adv7113

## Date published

2025-08-01

## Recorded date published

2025-8

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Energy filtering–induced ultrahigh thermoelectric power factors in Ni3Ge
  title_type: original
  lang: en

## Description

- description: Traditional thermoelectric materials rely on low thermal conductivity
    to enhance their efficiency but suffer from inherently limited power factors.
    Innovative pathways to optimize electronic transport are thus crucial. Here, we
    achieve ultrahigh power factors in Ni3Ge- based systems through an unconventional
    thermoelectric materials de- sign principle. When overlapping flat and dispersive
    bands are engineered to the Fermi level, charge carriers can undergo intense interband
    scattering, yielding an energy filtering effect similar to what has long been
    predicted in certain nanostructured materials. Via a multistep DFT- based screening
    method developed here, we find a family of L12- ordered binary compounds with
    ultrahigh power factors up to 11 mW m−1 K−2 near room temperature, which are driven
    by an intrinsic phonon- mediated energy filtering mechanism. Our comprehensive
    experimental and theoretical study of these intriguing materials paves the way
    for understanding and designing high- performance scattering- tuned metallic thermoelectrics.
  description_type: abstract
  lang: en

## Creator

- name: Fabian Garmroudi
  role: author
- name: Simone Di Cataldo
  role: author
- name: Michael Parzer
  role: author
- name: Jennifer Coulter
  role: author
- name: Yutaka Iwasaki
  role: author
  orcid: https://orcid.org/0000-0002-7317-4939
  organization: National Institute for Materials Science
- name: Matthias Grasser
  role: author
- name: Simon Stockinger
  role: author
- name: Stephan Pázmán
  role: author
- name: Sandra Witzmann
  role: author
- name: Alexander Riss
  role: author
- name: Herwig Michor
  role: author
- name: Raimund Podloucky
  role: author
- name: Sergii Khmelevskyi
  role: author
- name: Antoine Georges
  role: author
- name: Karsten Held
  role: author
- name: Takao Mori
  role: author
  orcid: https://orcid.org/0000-0003-2682-1846
  organization: National Institute for Materials Science
- name: Ernst Bauer
  role: author
- name: Andrej Pustogow
  role: author

## Contact agent



## Publisher

organization: American Association for the Advancement of Science (AAAS)

## Managing organization



## Keyword

- subject: thermoelectric materials
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science Advances
  issn: '23752548'
  volume: '11'
  issue: '31'
  article_number: eadv7113

## Conference



## Related item



## Funding

- identifier: JPMJMi19A1
  funder_name: JST
- identifier: CZ 08/2023 and HR 05/2024
  funder_name: 'OeAd- Gmbh '
- funder_name: 'TU Wien Bibliothek '

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## Specimen



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## Fileset

- id: d62e8445-a2c3-4984-a774-9ee0a24525fb
  filename: sciadv.adv7113.pdf
  content_type: application/pdf
  size: 3600330
  md5: dcd1e27333f1619a7469ba47534e34b0

## Thumbnail

fileset_id: d62e8445-a2c3-4984-a774-9ee0a24525fb
filename: sciadv.adv7113.pdf