# The Lorenz ratio as a guide to scattering contributions to transport in strongly correlated metals

https://mdr.nims.go.jp/datasets/0c00921d-5daa-410d-891a-faad0e21c393

## Files

- [sun-et-al-2024-the-lorenz-ratio-as-a-guide-to-scattering-contributions-to-transport-in-strongly-correlated-metals.pdf](https://mdr.nims.go.jp/filesets/9b8609a6-628f-4dea-bb46-9c1a4fc6230b/download) ([Detail](https://mdr.nims.go.jp/filesets/9b8609a6-628f-4dea-bb46-9c1a4fc6230b.md))

## Id

0c00921d-5daa-410d-891a-faad0e21c393

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-23T03:40:32.713852Z

## Updated at

2024-08-30T07:30:57.106240Z

## Published at

2024-08-30T07:30:57.203237Z

## Doi



## First published url

https://doi.org/10.1073/pnas.2318159121

## Date published

2024-08-27

## Recorded date published

2024-8-27

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: The Lorenz ratio as a guide to scattering contributions to transport in strongly
    correlated metals
  title_type: original
  lang: en

## Description

- description: In many physical situations in which many-body assemblies exist at
    temperature T, a characteristic quantum-mechanical time scale of approximately
    h_bar∕kBT can be identified in both theory and experiment, leading to speculation
    that it may be the shortest meaningful time in such circumstances. This behavior
    can be investigated by probing the scattering rate of electrons in a broad class
    of materials often referred to as “strongly correlated metals”. It is clear that
    in some cases only electron-electron scattering can be its cause, while in others
    it arises from high-temperature scattering of electrons from quantized lattice
    vibrations, i.e., phonons. In metallic oxides, which are among the most studied
    materials, analysis of electrical transport does not satisfactorily identify the
    relevant scattering mechanism at “high” temperatures near room temperature. We
    therefore employ a contactless optical method to measure thermal diffusivity in
    two Ru-based layered perovskites, Sr3Ru2O7 and Sr2RuO4, and use the measurements
    to extract the dimensionless Lorenz ratio. By comparing our results to the literature
    data on both conventional and unconventional metals, we show how the analysis
    of high-temperature thermal transport can both give important insight into dominant
    scattering mechanisms and be offered as a stringent test of theories attempting
    to explain anomalous scattering.
  description_type: abstract
  lang: und

## Creator

- name: Fei Sun
  role: author
- name: Simli Mishra
  role: author
- name: Ulrike Stockert
  role: author
- name: Ramzy Daou
  role: author
- name: Naoki Kikugawa
  role: author
  orcid: https://orcid.org/0000-0003-3975-4478
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Robin S. Perry
  role: author
- name: Elena Hassinger
  role: author
- name: Sean A. Hartnoll
  role: author
- name: Andrew P. Mackenzie
  role: author
- name: Veronika Sunko
  role: author

## Contact agent



## Publisher

organization: Proceedings of the National Academy of Sciences

## Managing organization



## Keyword

- subject: transport in strongly correlated metals
  schema: not_defined
- subject: Lorenz ratio
  schema: not_defined
- subject: thermal transport
  schema: not_defined
- subject: electron–electron scattering
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Proceedings of the National Academy of Sciences
  issn: '10916490'
  volume: '121'
  issue: '35'
  article_number: e2318159121

## Conference



## Related item



## Funding

- identifier: the Miller Institute for Basic Research in Science
  funder_name: University of California Berkeley
- identifier: TRR 288 - 422213477 (project A10)
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: Cluster of Excellence ct.qmat (EXC 2147 project ID 390858940)
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: 18K04715 21H01033 22K19093
  funder_name: MEXT | 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: 9b8609a6-628f-4dea-bb46-9c1a4fc6230b
  filename: sun-et-al-2024-the-lorenz-ratio-as-a-guide-to-scattering-contributions-to-transport-in-strongly-correlated-metals.pdf
  content_type: application/pdf
  size: 645798
  md5: da6e39b982da9ef2acfe2dfc0c342d31

## Thumbnail

fileset_id: 9b8609a6-628f-4dea-bb46-9c1a4fc6230b
filename: sun-et-al-2024-the-lorenz-ratio-as-a-guide-to-scattering-contributions-to-transport-in-strongly-correlated-metals.pdf