Origin of the quasi-quantized Hall effect in ZrTe5
Artikel i vetenskaplig tidskrift, 2021
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 . 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 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 electronic structure and its Dirac-type semi-metallic character.
Författare
S. Galeski
Max-Planck-Gesellschaft
T. Ehmcke
Technische Universität Dresden
R. Wawrzyńczak
Max-Planck-Gesellschaft
P. M. Lozano
Brookhaven National Laboratory
K. Cho
Max-Planck-Gesellschaft
A. Sharma
Max-Planck-Gesellschaft
S. Das
Max-Planck-Gesellschaft
F. Küster
Max-Planck-Gesellschaft
P. Sessi
Max-Planck-Gesellschaft
M. Brando
Max-Planck-Gesellschaft
R. Küchler
Max-Planck-Gesellschaft
A. Markou
Max-Planck-Gesellschaft
M. König
Max-Planck-Gesellschaft
P. Swekis
Max-Planck-Gesellschaft
C. Felser
Max-Planck-Gesellschaft
Yasmine Sassa
Chalmers, Fysik, Materialfysik
Q. Li
Brookhaven National Laboratory
G. Gu
Brookhaven National Laboratory
M. V. Zimmermann
Deutsches Elektronen-Synchrotron (DESY)
O. Ivashko
Deutsches Elektronen-Synchrotron (DESY)
D. I. Gorbunov
Helmholtz
S. Zherlitsyn
Helmholtz
T. Förster
Helmholtz
S. S.P. Parkin
Max-Planck-Gesellschaft
J. Wosnitza
Helmholtz
Technische Universität Dresden
T. Meng
Technische Universität Dresden
J. Gooth
Max-Planck-Gesellschaft
Technische Universität Dresden
Nature Communications
2041-1723 (ISSN) 20411723 (eISSN)
Vol. 12 1 3197Ämneskategorier
Oorganisk kemi
Materialkemi
Den kondenserade materiens fysik
DOI
10.1038/s41467-021-23435-y
PubMed
34045452