Origin of the quasi-quantized Hall effect in ZrTe5

Galeski S, Ehmcke T, Wawrzynczak R, Lozano PM, Cho K, Sharma A, Das S, Kuester F, Sessi P, Brando M, Kuchler R, Markou A, Konig M, Swekis P, Felser C, Sassa Y, Li Q, Gu G, Zimmermann M, Ivashko O, Gorbunov D, Zherlitsyn S, Foerster T, Parkin SSP, Wosnitza J, Meng TP, Gooth J (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 12

Article Number: 3197

Journal Issue: 1

DOI: 10.1038/s41467-021-23435-y

Abstract

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 ZrTe5. 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 ZrTe5 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 ZrTe5 electronic structure and its Dirac-type semi-metallic character.

Involved external institutions

Brookhaven National Laboratory US United States (USA) (US) Deutsches Elektronen-Synchrotron DESY DE Germany (DE) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE) Technische Universität Dresden DE Germany (DE) Max-Planck-Institut für Mikrostrukturphysik (MSP) / Max Planck Institute for Microstructure Physics DE Germany (DE) Chalmers University of Technology / Chalmers tekniska högskola SE Sweden (SE) Helmholtz-Zentrum Dresden-Rossendorf (HZDR) DE Germany (DE)

How to cite

APA:

Galeski, S., Ehmcke, T., Wawrzynczak, R., Lozano, P.M., Cho, K., Sharma, A.,... Gooth, J. (2021). Origin of the quasi-quantized Hall effect in ZrTe5. Nature Communications, 12(1). https://doi.org/10.1038/s41467-021-23435-y

MLA:

Galeski, Stanislaw, et al. "Origin of the quasi-quantized Hall effect in ZrTe5." Nature Communications 12.1 (2021).

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