Edge and bulk states in Weyl-orbit quantum Hall effect as studied by Corbino measurements
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866916105681895424 |
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| author | Nakazawa, Yusuke Kurihara, Ryosuke Miyazawa, Masatoshi Nishihaya, Shinichi Kriener, Markus Tokunaga, Masashi Kawasaki, Masashi Uchida, Masaki |
| author_facet | Nakazawa, Yusuke Kurihara, Ryosuke Miyazawa, Masatoshi Nishihaya, Shinichi Kriener, Markus Tokunaga, Masashi Kawasaki, Masashi Uchida, Masaki |
| contents | We investigate edge and bulk states in Weyl-orbit based quantum Hall effect by measuring a Corbino-type device fabricated from a topological Dirac semimetal (Cd1-xZnx)3As2 film. Clear quantum Hall plateaus are observed when measuring one-sided terminals of the Corbino-type device. This indicates that edge states of the Weyl-orbit quantum Hall effect form closed trajectories consisting of Fermi arcs and chiral zero modes independently on inner and outer sides. On the other hand, the bulk resistance does not diverge at fields where the quantum Hall plateau appears, suggesting that the Weyl orbits in the bulk region are not completely localized when applying electric current through the bulk region. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_00224 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Edge and bulk states in Weyl-orbit quantum Hall effect as studied by Corbino measurements Nakazawa, Yusuke Kurihara, Ryosuke Miyazawa, Masatoshi Nishihaya, Shinichi Kriener, Markus Tokunaga, Masashi Kawasaki, Masashi Uchida, Masaki Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons We investigate edge and bulk states in Weyl-orbit based quantum Hall effect by measuring a Corbino-type device fabricated from a topological Dirac semimetal (Cd1-xZnx)3As2 film. Clear quantum Hall plateaus are observed when measuring one-sided terminals of the Corbino-type device. This indicates that edge states of the Weyl-orbit quantum Hall effect form closed trajectories consisting of Fermi arcs and chiral zero modes independently on inner and outer sides. On the other hand, the bulk resistance does not diverge at fields where the quantum Hall plateau appears, suggesting that the Weyl orbits in the bulk region are not completely localized when applying electric current through the bulk region. |
| title | Edge and bulk states in Weyl-orbit quantum Hall effect as studied by Corbino measurements |
| topic | Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2401.00224 |