Anomalous Hall and Nernst effect switching via staggered rotation in a kagome antiferromagnetic semimetal
Fuente:
arXiv
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866913595719155712 |
|---|---|
| author | Pradhan, Subhadip Samanta, Kartik Nandy, Ashis K. |
| author_facet | Pradhan, Subhadip Samanta, Kartik Nandy, Ashis K. |
| contents | The intricate interplay between magnetism and the topology of electronic structures provides a rich avenue for tailoring materials with unique and potent anomalous transport properties. In this paper, we present a strategy for inducing robust Berry curvature and anomalous transverse conductivity in noncollinear antiferromagnets through an unconventional approach termed ``small \textit{staggered rotation} of spin". Considering noncollinear Mn$_3$Sn, we demonstrate that the positive vector chirality antiferromagnetic configuration, typically associated with a vanishing anomalous Hall effect and Nernst effect, can be manipulated to exhibit finite anomalous Hall conductivity (AHC) and anomalous Nernst conductivity (ANC) through \textit{staggered rotation}. Furthermore, we illustrate that the value and sign of both the AHC and ANC can be tuned through \textit{staggered rotation}. This tuning is intricately influenced by the spin-orbit coupling (SOC) induced gapped nodal line, revealing the critical role of electronic structure modifications in achieving precise control over transport properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_02324 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Anomalous Hall and Nernst effect switching via staggered rotation in a kagome antiferromagnetic semimetal Pradhan, Subhadip Samanta, Kartik Nandy, Ashis K. Materials Science The intricate interplay between magnetism and the topology of electronic structures provides a rich avenue for tailoring materials with unique and potent anomalous transport properties. In this paper, we present a strategy for inducing robust Berry curvature and anomalous transverse conductivity in noncollinear antiferromagnets through an unconventional approach termed ``small \textit{staggered rotation} of spin". Considering noncollinear Mn$_3$Sn, we demonstrate that the positive vector chirality antiferromagnetic configuration, typically associated with a vanishing anomalous Hall effect and Nernst effect, can be manipulated to exhibit finite anomalous Hall conductivity (AHC) and anomalous Nernst conductivity (ANC) through \textit{staggered rotation}. Furthermore, we illustrate that the value and sign of both the AHC and ANC can be tuned through \textit{staggered rotation}. This tuning is intricately influenced by the spin-orbit coupling (SOC) induced gapped nodal line, revealing the critical role of electronic structure modifications in achieving precise control over transport properties. |
| title | Anomalous Hall and Nernst effect switching via staggered rotation in a kagome antiferromagnetic semimetal |
| topic | Materials Science |
| url | https://arxiv.org/abs/2412.02324 |