Skip to content
DraconiticResearch
Search Sources API
190,839 studies31 sourcesUpdated 34 min ago
PreprintarXiv licencearXiv

Anomalous Hall Response Induced by Correlated Disorder in the Breathing Kagome Lattice Mn3Sn

  • Tsung-Han Yang
  • Seng Huat Lee
  • Hengxin Tan
  • Yuanpeng Zhang
  • Benjamin A. Frandsen
  • Václav Petříček
  • Huibo Cao
  • Daniel Olds
  • Matthew G. Tucker
  • Jiaqiang Yan
  • Binghai Yan
  • Zhiqiang Mao
1 more authors
  • Qiang Zhang
Open at sourcePDFDOICite

Abstract

Macroscopic transport tensors are generally constrained by the average crystallographic and magnetic symmetries of a material. In the kagome antiferromagnetic Weyl semimetals Mn3+δX (X=~Sn or Ge), previous studies showed that the anomalous Hall conductivity σyx is forbidden by the average \hexsg{} structure and coplanar inverse-triangular magnetic order. Here we report that nearly stoichiometric Mn3Sn nevertheless exhibits a finite σyx with large hysteresis, together with enhanced σzx and σyz, in the inverse-triangular phase below TN1≈ 440 K, whereas all AHE components vanish in the amplitude-modulated conical phase below TN2≈ 280 K. Total scattering and magnetic pair distribution function analysis reveal correlated orthorhombic distortions and noncoplanar Mn moments. First-principles calculations show that this coupled lattice-spin distortion activates the average symmetry forbidden σyx within the inverse-triangular phase. Its disappearance below TN2 indicates that the correlated disorder must cooperate with a long-range inverse-triangular antiferromagnetic order capable of supporting Berry curvature. Our results establish correlated disorder as an active symmetry-breaking degree of freedom that enables topological transport inaccessible from the Bragg-average structure alone.

Related

  1. Staged emergence of anomalous Hall transport in a correlated uranium Weyl semimetal
    Sabin Regmi, Shuxiang Zhou, Chandan K. Singh +9
    arXivPreprintCC BY 4.0Full textCondensed matterarXiv
  2. Correlated disorder versus correlated noise: Ordering in active systems
    Sudip Mukherjee, Abhik Basu
    arXivPreprintCC BY 4.0Full textStatistical & nonlinear physicsarXiv
  3. Exact spectrum and anomalous relaxation in the open disorder-free Sachdev-Ye-Kitaev system
    Soshun Ozaki, Hironobu Yoshida, Hosho Katsura
    arXivPreprintarXiv licenceFull textCondensed matterHigh-energy & particle physicsarXiv
  4. Anomalous diffusion and localization in a disorder-free atomic mixture
    Stefano Finelli, Beatrice Restivo, Alessio Ciamei +5
    HALPreprintCC BY-NC-ND 4.0Full textAtomic, molecular & optical physicsHAL
  5. Anomalous Hall response in the large-moment ferromagnet EuCu 9 Sn 4
    Dorota I. Walicka, Denis Sheptyakov, Soohyeon Shin +7
    Physical Review ResearchPeer-reviewedPublisher termsAtomic, molecular & optical physicsCrossref

Cite

BibTeXRIS
BibTeX
@misc{yang2026anomalous,
  title = {{Anomalous Hall Response Induced by Correlated Disorder in the Breathing Kagome Lattice Mn$_3$Sn}},
  author = {Tsung-Han Yang and Seng Huat Lee and Hengxin Tan and Yuanpeng Zhang and Benjamin A. Frandsen and Václav Petříček and Huibo Cao and Daniel Olds and Matthew G. Tucker and Jiaqiang Yan and Binghai Yan and Zhiqiang Mao and Qiang Zhang},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.09699},
  eprint = {2609.09699},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.09699},
}
RIS
TY  - UNPB
TI  - Anomalous Hall Response Induced by Correlated Disorder in the Breathing Kagome Lattice Mn_3Sn
AU  - Tsung-Han Yang
AU  - Seng Huat Lee
AU  - Hengxin Tan
AU  - Yuanpeng Zhang
AU  - Benjamin A. Frandsen
AU  - Václav Petříček
AU  - Huibo Cao
AU  - Daniel Olds
AU  - Matthew G. Tucker
AU  - Jiaqiang Yan
AU  - Binghai Yan
AU  - Zhiqiang Mao
AU  - Qiang Zhang
PY  - 2026
DA  - 2026/09/09
PB  - arXiv
DO  - 10.48550/arxiv.2609.09699
UR  - https://arxiv.org/abs/2609.09699
AB  - Macroscopic transport tensors are generally constrained by the average crystallographic and magnetic symmetries of a material. In the kagome antiferromagnetic Weyl semimetals Mn_3+δX (X=~Sn or Ge), previous studies showed that the anomalous Hall conductivity σ_yx is forbidden by the average \hexsg{} structure and coplanar inverse-triangular magnetic order. Here we report that nearly stoichiometric Mn_3Sn nevertheless exhibits a finite σ_yx with large hysteresis, together with enhanced σ_zx and σ_yz, in the inverse-triangular phase below T_N1≈ 440 K, whereas all AHE components vanish in the amplitude-modulated conical phase below T_N2≈ 280 K. Total scattering and magnetic pair distribution function analysis reveal correlated orthorhombic distortions and noncoplanar Mn moments. First-principles calculations show that this coupled lattice-spin distortion activates the average symmetry forbidden σ_yx within the inverse-triangular phase. Its disappearance below T_N2 indicates that the correlated disorder must cooperate with a long-range inverse-triangular antiferromagnetic order capable of supporting Berry curvature. Our results establish correlated disorder as an active symmetry-breaking degree of freedom that enables topological transport inaccessible from the Bragg-average structure alone.
ER  -