Probing intraband excitations in ZrTe${}_5$: a high-pressure infrared and transport study

Abstract

Zirconium pentatetelluride, ZrTe5, shows remarkable sensitivity to hydrostatic pressure. In this work we address the high-pressure transport and optical properties of this compound, on samples grown by flux and charge vapor transport. The high-pressure resistivity is measured up to 2 GPa, and the infrared transmission up to 9 GPa. The dc conductivity anisotropy is determined using a microstructured sample. Together, the transport and optical measurements allow us to discern band parameters with and without the hydrostatic pressure, in particular the Fermi level, and the effective mass in the less conducting, out-of-plane direction. The results are interpreted within a simple two-band model characterized by a Dirac-like, linear in-plane band dispersion, and a parabolic out-of-plane dispersion.

References in corpus (17)

• Observation of the chiral magnetic effect in ZrTe5
• Kramers-Kronig constrained variational analysis of optical spectra
• Anomalous Hall Effect in ZrTe5
• Electronic Evidence of Temperature-Induced Lifshitz Transition and Topological Nature in ZrTe5
• Optical spectroscopy study of three dimensional Dirac semimetal ZrTe${}_5$
• Magneto-infrared spectroscopy of Landau levels and Zeeman splitting of three-dimensional massless Dirac Fermions in ZrTe${}_5$
• Robust topological edge states at the perfect surface step edge of topological insulator ZrTe${}_5$
• Pressure-induced semimetal to superconductor transition in a three-dimensional topological material ZrTe5
• Experimental evidence of large-gap two-dimensional topological insulator on the surface of ZrTe5
• Scalable T^2 resistivity in a small single-component Fermi surface
• Evidence for a Strong Topological Insulator Phase in $\mathrm{ZrT}{\mathrm{e}}_5$
• Spectroscopic evidence for bulk-band inversion and three-dimensional massive Dirac fermions in ZrTe5
• 3D nature of ZrTe${}_5$ band structure measured by high-momentum-resolution photoemission spectroscopy
• Bipolar Conduction is the Origin of the Electronic Transition in Pentatellurides: Metallic vs. Semiconducting Behavior
• Two-dimensional conical dispersion in ZrTe5 evidenced by optical spectroscopy
• Disruption of the accidental Dirac semimetal state in ZrTe${}_5$ under hydrostatic pressure
• Thickness-tuned transition of band topology in ZrTe5 nanosheets

Cited by in corpus (9)

• Phonon softening near topological phase transitions
• Distinguishing the gapped and Weyl semimetal scenario in ZrTe${}_5$: insights from an effective two-band model
• High-harmonic generation in semi-Dirac and Weyl semimetals with broken time-reversal symmetry: Exploring merging of Weyl nodes
• Signature of pressure-induced topological phase transition in ZrTe${}_5$
• Correlated interaction effects in three-dimensional semi-Dirac semimetal
• Abrupt switching of the anomalous Hall effect by field-rotation in nonmagnetic ZrTe5
• T-square electric resistivity and its thermal counterpart in RuO${}_2$
• Effect of pressure on the transport properties and thermoelectric performance of Dirac semimetal ZrTe5
• Pressure induced electronic band evolution and observation of superconductivity in the Dirac semimetal ZrTe5