Origin of the quasi-quantized Hall effect in ZrTe$_5$
| Autor: | Markus König, Martin v. Zimmermann, T. Ehmcke, J. Wosnitza, P. M. Lozano, Tobias Förster, Felix Küster, Stanislaw Galeski, Johannes Gooth, O. Ivashko, Peter Swekis, Tobias Meng, Denis Gorbunov, Ken W.Y. Cho, Qiang Li, R. Küchler, Paolo Sessi, Sergei Zherlitsyn, S. Das, Manuel Brando, Ankit K. Sharma, Rafal Wawrzynczak, G. D. Gu, Stuart S. P. Parkin, Yasmine Sassa, Claudia Felser, Anastasios Markou |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Science
Dirac (software) Scanning tunneling spectroscopy General Physics and Astronomy FOS: Physical sciences Quantum Hall 02 engineering and technology Electronic structure Quantum Hall effect 01 natural sciences General Biochemistry Genetics and Molecular Biology Article symbols.namesake Condensed Matter - Strongly Correlated Electrons Hall effect 0103 physical sciences Topological insulators 010306 general physics Physics Condensed Matter - Materials Science Multidisciplinary Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Materials Science (cond-mat.mtrl-sci) Fermi surface General Chemistry 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Semimetal Phase transitions and critical phenomena symbols Condensed Matter::Strongly Correlated Electrons ddc:500 0210 nano-technology Hamiltonian (quantum mechanics) |
| Zdroj: | Nature Communications 12(1), 3197 (2021). doi:10.1038/s41467-021-23435-y Nature Communications Nature Communications 12(2021), 3197 Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021) |
| Popis: | Nature Communications 12(1), 3197 (2021). doi:10.1038/s41467-021-23435-y 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. Published by Nature Publishing Group UK, [London] |
| Databáze: | OpenAIRE |
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