%0 Journal Article %1 galeskiorigin %A Galeski, S. %A Ehmcke, T. %A Wawrzyńczak, R. %A Lozano, P. M. %A Cho, K. %A Sharma, A. %A Das, S. %A Küster, F. %A Sessi, P. %A Brando, M. %A Küchler, R. %A Markou, A. %A König, M. %A Swekis, P. %A Felser, C. %A Sassa, Y. %A Li, Q. %A Gu, G. %A Zimmermann, M. %A Ivashko, O. %A Gorbunov, D. %A Zherlitsyn, S. %A Förster, T. %A Parkin, S. %A Wosnitza, J. %A Meng, T. %A Gooth, J. %D 2021 %J Nat Commun %K d %P 3197 %T Origin of the quasi-quantized Hall effect in ZrTe$_5$ %U https://www.nature.com/articles/s41467-021-23435-y %V 12 %X 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 ZrTe$_5$ electronic structure and its Dirac-type semi-metallic character.

@article{galeskiorigin, 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 ZrTe$_5$ electronic structure and its Dirac-type semi-metallic character.}, added-at = {2021-10-14T18:02:48.000+0200}, author = {Galeski, S. and Ehmcke, T. and Wawrzyńczak, R. and Lozano, P. M. and Cho, K. and Sharma, A. and Das, S. and Küster, F. and Sessi, P. and Brando, M. and Küchler, R. and Markou, A. and König, M. and Swekis, P. and Felser, C. and Sassa, Y. and Li, Q. and Gu, G. and Zimmermann, M. and Ivashko, O. and Gorbunov, D. and Zherlitsyn, S. and Förster, T. and Parkin, S. and Wosnitza, J. and Meng, T. and Gooth, J.}, biburl = {https://www.bibsonomy.org/bibtex/2a9c73e9e00ef7307fb0ab8ed6dc790c2/ctqmat}, day = 27, description = {[PDF] Origin of the quasi-quantized Hall effect in ZrTe5 | Semantic Scholar}, interhash = {74104aafa72828d467318e8a09e7eb2b}, intrahash = {a9c73e9e00ef7307fb0ab8ed6dc790c2}, journal = {Nat Commun}, keywords = {d}, month = may, pages = 3197, timestamp = {2023-10-19T10:12:51.000+0200}, title = {Origin of the quasi-quantized Hall effect in ZrTe$_{\mathbf{5}}$}, type = {website}, url = {https://www.nature.com/articles/s41467-021-23435-y}, volume = 12, year = 2021 }