Distinct topological Hall responses in CeCu$_2$-type EuZn$_2$ and EuCd$_2$ films
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866912106987651072 |
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| author | Watanabe, Yuto Nishihaya, Shinichi Kriener, Markus Nakamura, Ayano Uchida, Masaki |
| author_facet | Watanabe, Yuto Nishihaya, Shinichi Kriener, Markus Nakamura, Ayano Uchida, Masaki |
| contents | Rare earth intermetallic compounds crystallized in AlB$_2$-type and its low-symmetry derivative CeCu$_2$-type structures potentially host diverse frustrated magnetic structures and rich magnetotransport phenomena. We report the film growth of CeCu$_2$-type EuZn$_2$ by molecular beam epitaxy and the observation of topological Hall responses highly contrastive to isostructural EuCd$_2$. While their magnetization curves are rather similar, the topological Hall effect observed in EuZn$_2$ is simpler, with the only one component enhanced at the magnetic transition field. EuZn$_2$ may be a unique system for studying the magnetic domain boundary effect on topological Hall responses among the CeCu$_2$-type rare-earth intermetallic compounds. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_03650 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Distinct topological Hall responses in CeCu$_2$-type EuZn$_2$ and EuCd$_2$ films Watanabe, Yuto Nishihaya, Shinichi Kriener, Markus Nakamura, Ayano Uchida, Masaki Materials Science Strongly Correlated Electrons Rare earth intermetallic compounds crystallized in AlB$_2$-type and its low-symmetry derivative CeCu$_2$-type structures potentially host diverse frustrated magnetic structures and rich magnetotransport phenomena. We report the film growth of CeCu$_2$-type EuZn$_2$ by molecular beam epitaxy and the observation of topological Hall responses highly contrastive to isostructural EuCd$_2$. While their magnetization curves are rather similar, the topological Hall effect observed in EuZn$_2$ is simpler, with the only one component enhanced at the magnetic transition field. EuZn$_2$ may be a unique system for studying the magnetic domain boundary effect on topological Hall responses among the CeCu$_2$-type rare-earth intermetallic compounds. |
| title | Distinct topological Hall responses in CeCu$_2$-type EuZn$_2$ and EuCd$_2$ films |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2411.03650 |