Band-asymmetry-driven nonreciprocal electronic transport in a helimagnetic semimetal α-EuP$_3$
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915120678961152 |
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| author | Mayo, Alex Hiro Deaconu, Darius-Alexandru Masuda, Hidetoshi Nii, Yoichi Takahashi, Hidefumi Belosludov, Rodion Vladimirovich Ishiwata, Shintaro Bahramy, Mohammad Saeed Onose, Yoshinori |
| author_facet | Mayo, Alex Hiro Deaconu, Darius-Alexandru Masuda, Hidetoshi Nii, Yoichi Takahashi, Hidefumi Belosludov, Rodion Vladimirovich Ishiwata, Shintaro Bahramy, Mohammad Saeed Onose, Yoshinori |
| contents | Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence between real-space magnetic topology/symmetry and such transport phenomena has been well established, a microscopic understanding based on the spin-dependent band structure in momentum space remains elusive. Here we demonstrate how a chiral magnetic structure in real space introduces an asymmetry in the electronic band structure and triggers a nonreciprocal electronic transport in a centrosymmetric helimagnet α-EuP$_3$. The magnetic structure of α-EuP$_3$ is highly tunable by a magnetic field and closely coupled to its semi-metallic electronic band structure, enabling a systematic study across chiral and achiral magnetic phases on the correspondence between nonreciprocal transport and electronic band asymmetry. Our findings reveal how a microscopic change in the magnetic configuration of charge carriers can lead to nonreciprocal electronic transport, paving the way for designing chiral magnets with desirable properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_13856 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Band-asymmetry-driven nonreciprocal electronic transport in a helimagnetic semimetal α-EuP$_3$ Mayo, Alex Hiro Deaconu, Darius-Alexandru Masuda, Hidetoshi Nii, Yoichi Takahashi, Hidefumi Belosludov, Rodion Vladimirovich Ishiwata, Shintaro Bahramy, Mohammad Saeed Onose, Yoshinori Materials Science Strongly Correlated Electrons Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence between real-space magnetic topology/symmetry and such transport phenomena has been well established, a microscopic understanding based on the spin-dependent band structure in momentum space remains elusive. Here we demonstrate how a chiral magnetic structure in real space introduces an asymmetry in the electronic band structure and triggers a nonreciprocal electronic transport in a centrosymmetric helimagnet α-EuP$_3$. The magnetic structure of α-EuP$_3$ is highly tunable by a magnetic field and closely coupled to its semi-metallic electronic band structure, enabling a systematic study across chiral and achiral magnetic phases on the correspondence between nonreciprocal transport and electronic band asymmetry. Our findings reveal how a microscopic change in the magnetic configuration of charge carriers can lead to nonreciprocal electronic transport, paving the way for designing chiral magnets with desirable properties. |
| title | Band-asymmetry-driven nonreciprocal electronic transport in a helimagnetic semimetal α-EuP$_3$ |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2404.13856 |