# Hidden Ferromagnetism of Centrosymmetric Antiferromagnets

https://mdr.nims.go.jp/datasets/56b3ae66-a448-4c86-97d8-6c04f30fabf7

## File

- [SCES2026_Solovyev.pdf](https://mdr.nims.go.jp/filesets/a5ae5a99-c7be-4f0e-bb3d-f76338420311/download) ([Detail](https://mdr.nims.go.jp/filesets/a5ae5a99-c7be-4f0e-bb3d-f76338420311.md))

## Id

56b3ae66-a448-4c86-97d8-6c04f30fabf7

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## Visibility

open_to_public

## State

published

## Created at

2026-10-06T00:36:06.254983Z

## Updated at

2026-10-14T02:58:24.349845Z

## Published at

2026-10-14T05:31:05.034116Z

## Doi

https://doi.org/10.48505/nims.8659

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## Resource type

conference_paper

## Manuscript type

na

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## Title

- title: Hidden Ferromagnetism of Centrosymmetric Antiferromagnets
  title_type: original
  lang: en

## Description

- description: "Time-reversal symmetry (T) breaking is a signature of ferromagnetism,
    giving rise to such phenomena as the anomalous Hall effect (AHE), orbital magnetism,
    and magneto-optical response. Nevertheless, T can be also broken in certain classes
    of antiferromagnets, which remain invariant under the spatial inversion. In the
    light of this similarity with ferromagnetism, it is tempting to ask whether such
    unconventional antiferromagnetic state can be represented as the simplest ferromagnetic
    one, i.e. within the minimal unit cell containing only one magnetic site. I will
    show that such representation is possible due to special form of the spin-orbit
    interaction in an antipolar lattice hosting this antiferromagnetic state. There
    are two important aspects of the problem:  (1) The spin-orbit interaction in the
    bonds surrounding each magnetic site has the same-sign components as well as sign-alternating
    components. While the former are responsible for the weak spin ferromagnetism
    (and can be eliminated in the simplest one-orbital model), the latter give rise
    to AHE. Thus, these two phenomena are fundamentally different from the microscopic
    point of view. (2) The inversion symmetry constrains the form of the spin-orbit
    interaction, which becomes invariant under the symmetry operation {S|t}, combining
    the 180° rotation of spins (S) with the lattice shift t, connecting two antiferromagnetic
    sublattices. This is the fundamental symmetry property of centrosymmetric antiferromagnets,
    which justifies the use of the generalized Bloch theorem and transformation to
    the local “ferromagnetic” coordinate frame with one magnetic site per cell. It
    naturally explains the emergence of AHE and net orbital magnetization. This idea
    will be illustrated on a number of examples, using for these purposes realistic
    models derived from first-principles calculations.\r\n"
  description_type: abstract
  lang: eng

## Creator

- name: SOLOVYEV Igor
  role: author
  orcid: https://orcid.org/0000-0002-2010-9877
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials
    Field/Quantum Materials Modeling Group

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## Keyword

- subject: anomalous Hall effect
  schema: not_defined
- subject: centrosymmetric antiferromagnetism
  schema: not_defined
- subject: time-reversal symmetry breaking
  schema: not_defined
- subject: altermagnetism
  schema: not_defined
- subject: spin-orbit interaction
  schema: not_defined

## Rights

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

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## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: International Conference on Strongly Correlated Electron Systems 2026
start_date: 2026-09-27
end_date: 2026-10-02
identifier: https://smartconf.jp/content/sces2026/

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## Fileset

- id: a5ae5a99-c7be-4f0e-bb3d-f76338420311
  filename: SCES2026_Solovyev.pdf
  content_type: application/pdf
  size: 67698
  md5: 1d01fede2557e78f01b5637b1ac7ca2e

## Thumbnail

fileset_id: a5ae5a99-c7be-4f0e-bb3d-f76338420311
filename: SCES2026_Solovyev.pdf