The orbital-driven topological phase transition and planar Hall responses in ternary tellurides Weyl semi-metals

Abstract

We study electronic properties of the ternary tellurides TaXTe${}_4$ (X=Rh, Ir) using density functional theory and investigate chiral anomaly mediated planar Hall response from ab initio calculations. We show that TaRhTe${}_4$ is a hybrid Weyl semimetal (WSM), hosting Weyl points (WPs) of both type-I, type-II, and TaIrTe${}_4$ is a type-I WSM in absence of spin-orbit coupling (SOC). TaRhTe${}_4$ continues to remain a hybrid WSM while TaIrTe${}_4$ converts into a type-II WSM under the application of SOC. We observe long Fermi arcs connecting WPs of opposite chirality. We report orbital-driven topological phase transition in ternary tellurides. The WSM phases in TaXTe${}_4$ are controlled by the orbital character of the $d_{xz}$ and $d_{z^2}$ states of X=Ir/Rh atoms. Replacing Rh with Ir enhances the $d_{z^2}$ orbital contribution near the Fermi level at the expense of $d_{xz}$ states. This transforms the type-I WPs into type-II resulting in a conversion of hybrid WSM TaRhTe${}_4$ to type-II WSM TaIrTe${}_4$. This systematic study opens new routes for engineering topological materials relying beyond strong SOC and sheds light on the effect of orbital degree of freedom on the electronic properties of tellurides. We further report an enhancement of planar Hall effects due to orbital-driven topological phase transition in TaXTe${}_4$ and we make resort to a tight-binding model to correlate the above findings with the velocity modulated off-diagonal effective mass anisotropy in different types of WSMs.

Main text: 11 pages, 8 figures

References in corpus (69)

• Topological Insulators
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
• Type-II Weyl Semimetals
• Weyl Semimetal in a Topological Insulator Multilayer
• Experimental discovery of Weyl semimetal TaAs
• Titanic Magnetoresistance in WTe2
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
• Chiral Anomaly and Classical Negative Magnetoresistance of Weyl Metals
• Observation of Weyl nodes in TaAs
• Discovery of a Weyl Fermion semimetal state in NbAs
• Quantum Hall effects in a Weyl Semi-Metal: possible application in pyrochlore Iridates
• Experimental observation of topological Fermi arcs in type-II Weyl semimetal MoTe2
• Superconductivity in Weyl Semimetal Candidate MoTe2
• Quantized circular photogalvanic effect in Weyl semimetals
• The chiral anomaly and thermopower of Weyl fermions in the half-Heusler GdPtBi
• Giant anisotropic nonlinear optical response in transition metal monopnictide Weyl semimetals
• Giant Planar Hall Effect in Epitaxial (Ga,Mn)As Devices
• Experimental discovery of a topological Weyl semimetal state in TaP
• Chiral anomaly as origin of planar Hall effect in Weyl semimetals
• Observation of Fermi Arcs in Type-II Weyl Semimetal Candidate WTe2
• Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals
• Predicted Unusual Magnetoresponse in Type-II Weyl Semimetals
• Giant Planar Hall Effect in Topological Metals
• Signature of strong spin-orbital coupling in the large non-saturating magnetoresistance material WTe2
• TaIrTe4 a ternary Type-II Weyl semi-metal
• Fermi arcs and their topological character in the candidate type-II Weyl semimetal MoTe2
• Topological surface states and Fermi arcs of the noncentrosymmetric Weyl semimetals TaAs, TaP, NbAs, and NbP
• Planar Hall effect in the Weyl semimetal GdPtBi
• Experimental tests of the chiral anomaly magnetoresistance in the Dirac-Weyl semimetals Na${}_3$Bi and GdPtBi
• Nernst and magneto-thermal conductivity in a lattice model of Weyl fermions
• Transport in three-dimensional topological insulators: theory and experiment
• Quantum Transport in Topological Semimetals under Magnetic Fields
• Berry phase correction to electron density in solids and "exotic" dynamics
• Experimental realization of type-II Weyl state in non-centrosymmetric TaIrTe${}_4$
• Origin of the superconductivity of WTe2 under pressure
• Non-topological Origin of the Planar Hall Effect in Type-II Dirac Semimetal NiTe2
• Giant Planar Hall Effect in the Dirac Semimetal ZrTe5
• Magnetic and transport properties in magnetic topological insulators MnBi2Te4(Bi2Te3)n (n=1,2)
• Probing the Chiral Anomaly by Planar Hall Effect in Three-dimensional Dirac Semimetal Cd3As2 Nanoplates
• Creating Weyl nodes and controlling their energy by magnetization rotation
• Spin-helical transport in normal and superconducting topological insulators
• Z_2 and Chiral Anomalies in Topological Dirac Semimetals
• Direct Measurement of Surface Transport on a Bulk Topological Insulator
• Berry phase theory of planar Hall effect in Topological Insulators
• Surface Superconductivity in the type II Weyl Semimetal TaIrTe4
• Magnetotransport and de Haas-van Alphen measurements in the type-II Weyl semimetal TaIrTe${}_4$
• Magnus Hall Effect
• Hybrid Weyl Semimetal
• MoTe2 : An uncompensated semimetal with extremely large magnetoresistance
• Current jetting distorted planar Hall effect in a Weyl semimetal with ultrahigh mobility
• Evidence of Coulomb interaction induced Lifshitz transition and robust hybrid Weyl semimetal in Td MoTe2
• Origin of planar Hall effect in type-II Weyl semimetal MoTe2
• Magneto-transport phenomena of type-I multi-Weyl semimetals in co-planar setups
• Role of time reversal symmetry and tilting in circular photogalvanic responses
• Mesoscopic transport in two-dimensional topological insulators
• Observation of superconductivity in pressurized Weyl semimetal candidate TaIrTe4
• Electronic structure and unconventional non-linear response in double Weyl semimetal SrSi${}_2$
• Nonsaturating magnetoresistance and nontrivial band topology of type-II Weyl semimetal NbIrTe4
• Interaction-induced topological phase transition and Majorana edge states in low-dimensional orbital-selective Mott insulators
• Understanding the three-dimensional quantum Hall effect in generic multi-Weyl semimetals
• Third-order Hall effect in the surface states of a topological insulator
• Topological Magnus responses in two and three dimensional systems
• Effect of chirality imbalance on Hall transport of PrRhC${}_2$
• Negative magnetoresistance and sign change of the planar Hall effect due to the negative off-diagonal effective-mass in Weyl semimetals
• Thermoelectric properties of inversion symmetry broken Weyl semimetal-Weyl superconductor hybrid junctions
• Topological Nature of Orbital Chern Insulators
• Role of effective mass anisotropy in realizing a hybrid nodal-line fermion state