Engineering a pure Dirac regime in ZrTe5
Journal article, 2023
Real-world topological semimetals typically exhibit Dirac and Weyl nodes that coexist with trivial Fermi pockets. This tends to mask the physics of the relativistic quasiparticles. Using the example of ZrTe5, we show that strain provides a powerful tool for in-situ tuning of the band structure such that all trivial pockets are pushed far away from the Fermi energy, but only for a certain range of Van der Waals gaps. Our results naturally reconcile contradicting reports on the presence or absence of additional pockets in ZrTe5, and provide a clear map of where to find a pure three-dimensional Dirac semimetallic phase in the structural parameter space of the material.
Author
Jorge I. Facio
Consejo Nacional de Investigaciones Cientificas y Tecnicas
Leibniz Association
Comision Nacional de Energia Atomica Argentina
E. Nocerino
Royal Institute of Technology (KTH)
Ion C. Fulga
Leibniz Association
R. Wawrzyńczak
Max Planck Society
Joanna Brown
Max Planck Society
Genda Gu
Brookhaven National Laboratory
Qiang Li
Brookhaven National Laboratory
Stony Brook University
Martin Månsson
Royal Institute of Technology (KTH)
Yasmine Sassa
Chalmers, Physics, Materials Physics
O. Ivashko
Deutsches Elektronen-Synchrotron (DESY)
Martin V. Zimmermann
Deutsches Elektronen-Synchrotron (DESY)
Felix Mende
Technische Universität Dresden
J. Gooth
Max Planck Society
University of Bonn
S. Galeski
University of Bonn
Max Planck Society
J. van den Brink
Technische Universität Dresden
Leibniz Association
Tobias Meng
Technische Universität Dresden
SciPost Physics
25424653 (eISSN)
Vol. 14 4 066Subject Categories (SSIF 2011)
Condensed Matter Physics
DOI
10.21468/SciPostPhys.14.4.066
Related datasets
Engineering a pure Dirac regime in ZrTe 5 [dataset]
DOI: 10.5281/zenodo.7395944