Origin of the quasi-quantized Hall effect in ZrTe(5)

The quantum Hall effect (QHE) is traditionally considered to be a purely two-dimensional (2D) phenomenon. Recently, however, a three-dimensional (3D) version of the QHE was reported in the Dirac semimetal ZrTe(5). It was proposed to arise from a magnetic-field-driven Fermi surface instability, trans...

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Autores principales: Galeski, S., Ehmcke, T., Wawrzyńczak, R., Lozano, P. M., Cho, K., Sharma, A., Das, S., Küster, F., Sessi, P., Brando, M., Küchler, R., Markou, A., König, M., Swekis, P., Felser, C., Sassa, Y., Li, Q., Gu, G., Zimmermann, M. V., Ivashko, O., Gorbunov, D. I., Zherlitsyn, S., Förster, T., Parkin, S. S. P., Wosnitza, J., Meng, T., Gooth, J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8159947/
https://www.ncbi.nlm.nih.gov/pubmed/34045452
http://dx.doi.org/10.1038/s41467-021-23435-y
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author Galeski, S.
Ehmcke, T.
Wawrzyńczak, R.
Lozano, P. M.
Cho, K.
Sharma, A.
Das, S.
Küster, F.
Sessi, P.
Brando, M.
Küchler, R.
Markou, A.
König, M.
Swekis, P.
Felser, C.
Sassa, Y.
Li, Q.
Gu, G.
Zimmermann, M. V.
Ivashko, O.
Gorbunov, D. I.
Zherlitsyn, S.
Förster, T.
Parkin, S. S. P.
Wosnitza, J.
Meng, T.
Gooth, J.
author_facet Galeski, S.
Ehmcke, T.
Wawrzyńczak, R.
Lozano, P. M.
Cho, K.
Sharma, A.
Das, S.
Küster, F.
Sessi, P.
Brando, M.
Küchler, R.
Markou, A.
König, M.
Swekis, P.
Felser, C.
Sassa, Y.
Li, Q.
Gu, G.
Zimmermann, M. V.
Ivashko, O.
Gorbunov, D. I.
Zherlitsyn, S.
Förster, T.
Parkin, S. S. P.
Wosnitza, J.
Meng, T.
Gooth, J.
author_sort Galeski, S.
collection PubMed
description The quantum Hall effect (QHE) is traditionally considered to be a purely two-dimensional (2D) phenomenon. Recently, however, a three-dimensional (3D) version of the QHE was reported in the Dirac semimetal ZrTe(5). It was proposed to arise from a magnetic-field-driven Fermi surface instability, transforming the original 3D electron system into a stack of 2D sheets. Here, we report thermodynamic, spectroscopic, thermoelectric and charge transport measurements on such ZrTe(5) samples. The measured properties: magnetization, ultrasound propagation, scanning tunneling spectroscopy, and Raman spectroscopy, show no signatures of a Fermi surface instability, consistent with in-field single crystal X-ray diffraction. Instead, a direct comparison of the experimental data with linear response calculations based on an effective 3D Dirac Hamiltonian suggests that the quasi-quantization of the observed Hall response emerges from the interplay of the intrinsic properties of the ZrTe(5) electronic structure and its Dirac-type semi-metallic character.
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spelling pubmed-81599472021-06-11 Origin of the quasi-quantized Hall effect in ZrTe(5) Galeski, S. Ehmcke, T. Wawrzyńczak, R. Lozano, P. M. Cho, K. Sharma, A. Das, S. Küster, F. Sessi, P. Brando, M. Küchler, R. Markou, A. König, M. Swekis, P. Felser, C. Sassa, Y. Li, Q. Gu, G. Zimmermann, M. V. Ivashko, O. Gorbunov, D. I. Zherlitsyn, S. Förster, T. Parkin, S. S. P. Wosnitza, J. Meng, T. Gooth, J. Nat Commun Article The quantum Hall effect (QHE) is traditionally considered to be a purely two-dimensional (2D) phenomenon. Recently, however, a three-dimensional (3D) version of the QHE was reported in the Dirac semimetal ZrTe(5). It was proposed to arise from a magnetic-field-driven Fermi surface instability, transforming the original 3D electron system into a stack of 2D sheets. Here, we report thermodynamic, spectroscopic, thermoelectric and charge transport measurements on such ZrTe(5) samples. The measured properties: magnetization, ultrasound propagation, scanning tunneling spectroscopy, and Raman spectroscopy, show no signatures of a Fermi surface instability, consistent with in-field single crystal X-ray diffraction. Instead, a direct comparison of the experimental data with linear response calculations based on an effective 3D Dirac Hamiltonian suggests that the quasi-quantization of the observed Hall response emerges from the interplay of the intrinsic properties of the ZrTe(5) electronic structure and its Dirac-type semi-metallic character. Nature Publishing Group UK 2021-05-27 /pmc/articles/PMC8159947/ /pubmed/34045452 http://dx.doi.org/10.1038/s41467-021-23435-y Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Galeski, S.
Ehmcke, T.
Wawrzyńczak, R.
Lozano, P. M.
Cho, K.
Sharma, A.
Das, S.
Küster, F.
Sessi, P.
Brando, M.
Küchler, R.
Markou, A.
König, M.
Swekis, P.
Felser, C.
Sassa, Y.
Li, Q.
Gu, G.
Zimmermann, M. V.
Ivashko, O.
Gorbunov, D. I.
Zherlitsyn, S.
Förster, T.
Parkin, S. S. P.
Wosnitza, J.
Meng, T.
Gooth, J.
Origin of the quasi-quantized Hall effect in ZrTe(5)
title Origin of the quasi-quantized Hall effect in ZrTe(5)
title_full Origin of the quasi-quantized Hall effect in ZrTe(5)
title_fullStr Origin of the quasi-quantized Hall effect in ZrTe(5)
title_full_unstemmed Origin of the quasi-quantized Hall effect in ZrTe(5)
title_short Origin of the quasi-quantized Hall effect in ZrTe(5)
title_sort origin of the quasi-quantized hall effect in zrte(5)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8159947/
https://www.ncbi.nlm.nih.gov/pubmed/34045452
http://dx.doi.org/10.1038/s41467-021-23435-y
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