Origin of the quasi-quantized Hall effect in ZrTe5

被引：48

作者：

Galeski, S. ^{[1
]}

Ehmcke, T. ^{[2
,3
]}

Wawrzynczak, R. ^{[1
]}

Lozano, P. M. ^{[4
]}

Cho, K. ^{[5
]}

Sharma, A. ^{[5
]}

Das, S. ^{[5
]}

Kuester, F. ^{[5
]}

Sessi, P. ^{[5
]}

Brando, M. ^{[1
]}

Kuchler, R. ^{[1
]}

Markou, A. ^{[1
]}

Konig, M. ^{[1
]}

Swekis, P. ^{[1
]}

Felser, C. ^{[1
]}

Sassa, Y. ^{[6
]}

Li, Q. ^{[4
]}

Gu, G. ^{[4
]}

Zimmermann, M., V ^{[7
]}

Ivashko, O. ^{[7
]}

Gorbunov, D., I ^{[8
,9
]}

Zherlitsyn, S. ^{[8
,9
]}

Foerster, T. ^{[8
,9
]}

Parkin, S. S. P. ^{[5
]}

Wosnitza, J. ^{[8
,9
,10
]}

Meng, T. ^{[2
,3
]}

Gooth, J. ^{[1
,10
]}

机构：

[1] Max Planck Inst Chem Phys Solids, Dresden, Germany

[2] Tech Univ Dresden, Inst Theoret Phys, Dresden, Germany

[3] Tech Univ Dresden, Wurzburg Dresden Cluster Excellence Ct Qmat, Dresden, Germany

[4] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA

[5] Max Planck Inst Microstruct Phys, Halle, Saale, Germany

[6] Chalmers Univ Technol, Dept Phys, Gothenburg, Sweden

[7] Deutsch Elekt Synchrotron DESY, Hamburg, Germany

[8] Helmholtz Zentrum Dresden Rossendorf, Hochfeld Magnetlab Dresden HLD EMFL, Dresden, Germany

[9] Helmholtz Zentrum Dresden Rossendorf, Wurzburg Dresden Cluster Excellence Ct Qmat, Dresden, Germany

[10] Tech Univ Dresden, Inst Festkorper & Mat Phys, Dresden, Germany

来源：

NATURE COMMUNICATIONS | 2021年 / 12卷 / 01期

基金：

瑞典研究理事会;

关键词：

X-RAY-DIFFRACTION; DENSITY; TRANSITION; STATES; TRANSPORT; ANOMALIES; PHASE;

D O I：

10.1038/s41467-021-23435-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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. A 3D quantum Hall effect has been reported in Dirac semimetal ZrTe5 due to a magnetic-field-driven Fermi surface instability. Here, the authors show evidence of quasi-quantized Hall response without Fermi surface instability, but they argue that it is due to the interplay of the intrinsic properties of ZrTe5 electronic structure and Dirac semi-metallic character.

引用

页数：8

共 52 条

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