# Spin and bond-charge excitation spectra in correlated electron systems near an antiferromagnetic phase

https://mdr.nims.go.jp/datasets/1b5abff0-dfa3-4132-804a-c47abe5cb180

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## Id

1b5abff0-dfa3-4132-804a-c47abe5cb180

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-20T09:55:08.172141Z

## Updated at

2024-11-19T07:31:15.397233Z

## Published at

2024-11-19T07:31:15.499596Z

## Doi

https://doi.org/10.48505/nims.4994

## First published url

https://doi.org/10.1103/physrevb.109.245127

## Date published

2024-06-20

## Recorded date published

2024-6

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Spin and bond-charge excitation spectra in correlated electron systems near
    an antiferromagnetic phase
  title_type: original
  lang: en

## Description

- description: 'Magnetic and bond-charge interactions can arise from the same microscopic
    interaction. Motivated by this observation, we compute magnetic and bond-charge
    excitation spectra on an equal footing by introducing a simple effective model
    on a square lattice, which describes antiferromagnetic and d-wave superconducting
    phases around half-filling on the electron-doped side. The magnetic excitation
    spectrum Im chi(q, omega) has strong weight around q=(pi, pi) in low energy and
    its intensity map exhibits a pencil-tip-like shape in q-omega space. Around q=(0,0)
    magnetic excitations show a steep dispersion toward the (pi, pi) and (pi,0) directions,
    which is very similar to a spin-wave dispersion although the system is non-magnetic.
    Bond-charge excitations are characterized by four different symmetries and studied
    for all possible couplings. Bond-charge fluctuations with three different symmetries
    have large spectral weight around q=(pi, pi) in a relatively low-energy region
    and extend widely more than the  magnetic excitation spectrum. The d-wave symmetry
    of bond-charge excitations also has sizable spectral weight along the direction
    (pi/2, pi/2)-(0, 0)-(pi/2, 0) in a low-energy region and exhibits softening around
    q =(0.5 pi, 0), whereas no such softening is present in the other symmetries.
    We extend the present analysis to the hole-doped side and highlight a contrast
    to the electron-doped side, which includes incommensurate correlations, electronic
    nematic correlations, and spin and bond-charge resonance modes in the superconducting
    state. '
  description_type: abstract
  lang: und

## Creator

- name: Muhammad Zafur
  role: author
  orcid: https://orcid.org/0000-0001-7987-9465
- name: Hiroyuki Yamase
  role: author
  orcid: https://orcid.org/0000-0003-0328-5657
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: bond-charge excitations
  schema: not_defined
- subject: antiferromagnetic interaction
  schema: not_defined
- subject: spin excitations
  schema: not_defined
- subject: cuprate superconductors
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review B
  issn: 1550235X
  volume: '109'
  issue: '24'
  article_number: '245127'

## Conference



## Related item



## Funding

- identifier: JP20H01856
  funder_name: Japan Society for the Promotion of Science
- funder_name: Ministry of Education, Culture, Sports, Science and Technology

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## Fileset

- id: 064441e1-9a3e-4dbb-b2c2-4e3987454918
  filename: main.pdf
  content_type: application/pdf
  size: 10443544
  md5: ff45a684ace3d8dda81c630f5682753b

## Thumbnail

fileset_id: 064441e1-9a3e-4dbb-b2c2-4e3987454918
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