Signature of pressure-induced topological phase transition in ZrTe${}_5$

Abstract

The layered van der Waals material ZrTe${}_5$ is known as a candidate topological insulator (TI), however its topological phase and the relation with other properties such as an apparent Dirac semimetallic state is still a subject of debate. We employ a semiclassical multicarrier transport (MCT) model to analyze the magnetotransport of ZrTe${}_5$ nanodevices at hydrostatic pressures up to 2 GPa. The temperature dependence of the MCT results between 10 and 300 K is assessed in the context of thermal activation, and we obtain the positions of conduction and valence band edges in the vicinity of the chemical potential. We find evidence of the closing and re-opening of the band gap with increasing pressure, which is consistent with a phase transition from weak to strong TI. This matches expectations from ab initio band structure calculations, as well as previous observations that CVT-grown ZrTe${}_5$ is a weak TI in ambient conditions.

arXiv commentMain Text: 11 pages, 5 figures; Supporting Information: 13 pages, 9 figures

References in corpus (51)

• Topological Insulators
• Topological insulators and superconductors
• The SIESTA method for ab initio order-N materials simulation
• Efficient index handling of multidimensional periodic boundary conditions
• Quantum Spin Hall Effect in Graphene
• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• Tuning superconductivity in twisted bilayer graphene
• Quantum Spin Hall Effect
• Majorana Zero Modes and Topological Quantum Computation
• Spintronics and Pseudospintronics in Graphene and Topological Insulators
• The Quantum Spin Hall Effect: Theory and Experiment
• SIESTA: recent developments and applications
• Pressure-controlled interlayer magnetism in atomically thin CrI3
• Dynamic band structure tuning of graphene moiré superlattices with pressure
• 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${}_5$
• Pressure dependence of the magic twist angle in graphene superlattices
• Robust topological edge states at the perfect surface step edge of topological insulator ZrTe${}_5$
• Transport evidence for the three-dimensional Dirac semimetal phase in ZrTe5
• Evidence for a strain tuned topological phase transition in ZrTe5
• Pressure-induced semimetal to superconductor transition in a three-dimensional topological material ZrTe5
• Evidence for a Strong Topological Insulator Phase in $\mathrm{ZrT}{\mathrm{e}}_5$
• Structure change, layer sliding, and metallization in high-pressure MoS${}_2$
• Observation of Optical and Electrical In-plane Anisotropy in High-mobility Few-layer ZrTe5
• Transition between strong and weak topological insulator in ZrTe${}_5$ and HfTe${}_5$
• Spectroscopic evidence for bulk-band inversion and three-dimensional massive Dirac fermions in ZrTe5
• Gate-tunable Spin-Galvanic Effect in Graphene Topological insulator van der Waals Heterostructures at Room Temperature
• Observation and control of the weak topological insulator state in ZrTe5
• Gigantic magnetochiral anisotropy in the topological semimetal ZrTe5
• Observation of quasi-two-dimensional Dirac fermions in ZrTe5
• Topological insulator based spin valve devices: evidence for spin polarized transport of spin-momentum-locked topological surface states
• Current-induced spin polarization in topological insulator-graphene heterostructures
• Disruption of the accidental Dirac semimetal state in ZrTe${}_5$ under hydrostatic pressure
• Electrical transport in nano-thick ZrTe${}_5$ sheets: from three to two dimensions
• Tailoring the band structure of twisted double bilayer graphene with pressure
• Photoinduced Dirac semimetal in ZrTe5
• Consecutive topological phase transitions and colossal magnetoresistance in a magnetic topological semimetal
• Thickness-tuned transition of band topology in ZrTe5 nanosheets
• Transport measurements on van der Waals heterostructures under pressure
• Bilayer graphene under pressure: Electron-hole Symmetry Breaking, Valley Hall Effect, and Landau Levels
• Multi-carrier transport in ZrTe5 film
• Probing intraband excitations in ZrTe${}_5$: a high-pressure infrared and transport study
• Gate-tunable multiband transport in ZrTe5 thin devices
• Uniaxial Strain Induced Topological Phase Transition in Bismuth-Tellurohalide-Graphene Heterostructures
• Optical conductivity and resistivity in a four-band model for ZrTe${}_5$ from ab-initio calculations
• Revealing the band structure of ZrTe${}_5$ using Multicarrier Transport
• Stabilizing the inverted phase of a WSe${}_2$/BLG/WSe${}_2$ heterostructure via hydrostatic pressure

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