# Phonon-Mediated Quasiparticle Lifetime Renormalizations in Few-Layer Hexagonal Boron Nitride

https://mdr.nims.go.jp/datasets/7c53661f-c19f-4829-9cfb-abb2bf7d4a06

## Files

- [acs.nanolett.3c02086.pdf](https://mdr.nims.go.jp/filesets/7dab763d-4409-4f3f-9e9f-716b171eed52/download) ([Detail](https://mdr.nims.go.jp/filesets/7dab763d-4409-4f3f-9e9f-716b171eed52.md))

## Id

7c53661f-c19f-4829-9cfb-abb2bf7d4a06

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T05:26:01.765120Z

## Updated at

2025-02-14T07:31:03.694466Z

## Published at

2025-02-14T07:31:03.790227Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.3c02086

## Date published

2023-08-23

## Recorded date published

2023-8-23

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Phonon-Mediated Quasiparticle Lifetime Renormalizations in Few-Layer Hexagonal
    Boron Nitride
  title_type: original
  lang: en

## Description

- description: Understanding the collective behavior of the quasiparticles in solid-state
    systems underpins the field of non-volatile electronics, including the opportunity
    to control many-body effects for well-desired physical phenomena and their applications.
    Hexagonal boron nitride (hBN) is a wide energy bandgap semiconductor, showing
    immense potential as a platform for low- dimensional device heterostructures.
    It is an inert dielectric used for gated devices, having a negligible orbital
    hybridization when placed in contact with other systems. Despite its inertness,
    we discover a large electron mass enhancement in few-layer hBN affecting the lifetime
    of the π-states. Here, we show that such a renormalization is consistent with
    a novel two- phonon intra-band scattering process, or inter-band scattering with
    the underlying graphene substrate. Our findings thus unveil a so-far unknown phenomenology,
    going beyond the standard description of a single electron-phonon coupling, with
    important implications for devices using hBN as one of their building blocks.
  description_type: abstract
  lang: und

## Creator

- name: Håkon I. Røst
  role: author
- name: Simon P. Cooil
  role: author
- name: Anna Cecilie Åsland
  role: author
- name: Jinbang Hu
  role: author
- name: Ayaz Ali
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Branson D. Belle
  role: author
- name: Bodil Holst
  role: author
- name: Jerzy T. Sadowski
  role: author
- name: Federico Mazzola
  role: author
- name: Justin W. Wells
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Quasiparticles
  schema: not_defined
- subject: hexagonal boron nitride
  schema: not_defined
- subject: many-body effects
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '23'
  issue: '16'
  start_page: 7539
  end_page: 7545

## Conference



## Related item



## Funding

- identifier: '245963'
  funder_name: Norges Forskningsråd
- identifier: '262633'
  funder_name: Norges Forskningsråd
- identifier: '280788'
  funder_name: Norges Forskningsråd
- identifier: '315330'
  funder_name: Norges Forskningsråd
- identifier: '324183'
  funder_name: Norges Forskningsråd
- identifier: 19H05790
  funder_name: Japan Society for the Promotion of Science
- identifier: 20H00354
  funder_name: Japan Society for the Promotion of Science
- identifier: 21H05233
  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: 7dab763d-4409-4f3f-9e9f-716b171eed52
  filename: acs.nanolett.3c02086.pdf
  content_type: application/pdf
  size: 6001947
  md5: df60225c7766ac2ea6c82dc97bbda374

## Thumbnail

fileset_id: 7dab763d-4409-4f3f-9e9f-716b171eed52
filename: acs.nanolett.3c02086.pdf