{"title":"Edge and Bulk States in Weyl-Orbit Quantum Hall Effect as Studied by Corbino Measurements","authors":"Yusuke Nakazawa, Ryosuke Kurihara, Masatoshi Miyazawa, Shinichi Nishihaya, Markus Kriener, Masashi Tokunaga, Masashi Kawasaki, Masaki Uchida","doi":"10.7566/jpsj.93.023706","DOIUrl":null,"url":null,"abstract":"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 (Cd<sub>1−</sub><i><sub>x</sub></i>Zn<i><sub>x</sub></i>)<sub>3</sub>As<sub>2</sub> 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.","PeriodicalId":17304,"journal":{"name":"Journal of the Physical Society of Japan","volume":"334 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Physical Society of Japan","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.7566/jpsj.93.023706","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
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.
期刊介绍：
The papers published in JPSJ should treat fundamental and novel problems of physics scientifically and logically, and contribute to the development in the understanding of physics. The concrete objects are listed below.
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JPSJ covers all the fields of physics including (but not restricted to)
Elementary particles and fields
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Plasma physics
Physics of Condensed Matter
Metal, Superconductor, Semiconductor, Magnetic Materials, Dielectric Materials
Physics of Nanoscale Materials
Optics and Quantum Electronics
Physics of Complex Systems
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