Engineering a pure Dirac regime in ZrTe$_5$

Facio, Jorge I.; Nocerino, Elisabetta; Fulga, Ion Cosma; Wawrzynczak, Rafal; Brown, Joanna; Gu, Genda; Li, Qiang; Mansson, Martin; Sassa, Yasmine; Ivashko, Oleh; von Zimmermann, Martin; Mende, Felix; Gooth, Johannes; Galeski, Stanislaw; van den Brink, Jeroen; Meng, Tobias

doi:10.21468/SciPostPhys.14.4.066

SciPost Physics

Engineering a pure Dirac regime in ZrTe$_5$

Jorge I. Facio, Elisabetta Nocerino, Ion Cosma Fulga, Rafal Wawrzynczak, Joanna Brown, Genda Gu, Qiang Li, Martin Mansson, Yasmine Sassa, Oleh Ivashko, Martin v. Zimmermann, Felix Mende, Johannes Gooth, Stanislaw Galeski, Jeroen van den Brink, Tobias Meng

SciPost Phys. 14, 066 (2023) · published 11 April 2023

doi: 10.21468/SciPostPhys.14.4.066
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Abstract

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 ZrTe$_5$, 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 ZrTe$_5$, and provide a clear map of where to find a pure three-dimensional Dirac semimetallic phase in the structural parameter space of the material.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.14.4.066
TI  - Engineering a pure Dirac regime in ZrTe$_5$
PY  - 2023/04/11
UR  - https://www.scipost.org/SciPostPhys.14.4.066
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 14
IS  - 4
SP  - 066
A1  - Facio, Jorge I.
AU  - Nocerino, Elisabetta
AU  - Fulga, Ion Cosma
AU  - Wawrzynczak, Rafal
AU  - Brown, Joanna
AU  - Gu, Genda
AU  - Li, Qiang
AU  - Mansson, Martin
AU  - Sassa, Yasmine
AU  - Ivashko, Oleh
AU  - von Zimmermann, Martin
AU  - Mende, Felix
AU  - Gooth, Johannes
AU  - Galeski, Stanislaw
AU  - van den Brink, Jeroen
AU  - Meng, Tobias
AB  - 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 ZrTe$_5$, 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 ZrTe$_5$, and provide a clear map of where to find a pure three-dimensional Dirac semimetallic phase in the structural parameter space of the material.
ER  -

@Article{10.21468/SciPostPhys.14.4.066,
	title={{Engineering a pure Dirac regime in ZrTe$_5$}},
	author={Jorge I. Facio and Elisabetta Nocerino and Ion Cosma Fulga and Rafal Wawrzynczak and Joanna Brown and Genda Gu and Qiang Li and Martin Mansson and Yasmine Sassa and Oleh Ivashko and Martin v. Zimmermann and Felix Mende and Johannes Gooth and Stanislaw Galeski and Jeroen van den Brink and Tobias Meng},
	journal={SciPost Phys.},
	volume={14},
	pages={066},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.14.4.066},
	url={https://scipost.org/10.21468/SciPostPhys.14.4.066},
}

Cited by 1

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¹ ² ³ ⁴ Jorge I. Facio,
⁵ Elisabetta Nocerino,
² Ion Cosma Fulga,
⁶ Rafal Wawrzynczak,
⁶ Joanna Brown,
⁷ Genda Gu,
⁷ ⁸ Qiang Li,
⁵ Martin Mansson,
⁹ Yasmine Sassa,
¹⁰ Oleh Ivashko,
¹⁰ Martin von Zimmermann,
¹¹ Felix Mende,
⁶ ¹² Johannes Gooth,
⁶ ¹² Stanislaw Galeski,
² ¹¹ Jeroen van den Brink,
¹¹ Tobias Meng

Funders for the research work leading to this publication