Signatures of non-trivial band topology in LaAs/LaBi heterostructure

Abstract

In this article, we investigate non-trivial topological features in a heterostructure of extreme magnetoresistance (XMR) materials LaAs and LaBi using density functional theory (DFT). The proposed heterostructure is found to be dynamically stable and shows bulk band inversion with non-trivial Z_{2} topological invariant and a Dirac cone at the surface. In addition, its electron and hole carrier densities ratio is also calculated to investigate the possibility to possess XMR effect. Electrons and holes in the heterostructure are found to be nearly compensated, thereby facilitating it to be a suitable candidate for XMR studies.

arXiv comment5 Figures, 9 pages

References in corpus (38)

• Topological Insulators
• Topological insulators and superconductors
• Topological Insulators in Three Dimensions
• Weyl and Dirac Semimetals in Three Dimensional Solids
• Topological Insulators with Inversion Symmetry
• Maximally localized Wannier functions: Theory and applications
• WannierTools: An open-source software package for novel topological materials
• Topological Crystalline Insulators
• Titanic Magnetoresistance in WTe2
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd${}_3$As${}_2$
• Band structure engineering in (Bi1-xSbx)2Te3 ternary topological insulators
• Electromagnetic Response of Weyl Semimetals
• Negative Magnetoresistance in Dirac Semimetal Cd3As2
• Ambipolar Field Effect in Topological Insulator Nanoplates of (BixSb1-x)2Te3
• Self-Organized Topological State with Majorana Fermions
• Electronic structure basis for the titanic magnetoresistance in WTe${}_2$
• Signature of strong spin-orbital coupling in the large non-saturating magnetoresistance material WTe2
• Topological Insulators in Random Lattices
• Large magnetoresistance in LaBi: origin of field-induced resistivity upturn and plateau in compensated semimetals
• Higher-order topological insulators in amorphous solids
• Resistivity plateau and extremely large magnetoresistance in NbAs2 and TaAs2
• Realization of a vertical topological p-n junction in epitaxial $\mathrm{S}{\mathrm{b}}_2\mathrm{T}{\mathrm{e}}_3/B{\mathrm{i}}_2\mathrm{T}{\mathrm{e}}_3$ heterostructures
• Perfect charge compensation in extremely large magnetoresistance materials LaSb and LaBi revealed by the first-principles calculations
• Hyperentanglement purification for two-photon six-qubit quantum systems
• Evidence of topological insulator state in the semimetal LaBi
• Tunable Electronic Structure and Topological Properties of $LnPn$ ($Ln$=Ce, Pr, Gd, Sm, Yb; $Pn$=Sb, Bi)
• Extreme magnetoresistance in the topologically trivial lanthanum monopnictide LaAs
• Topological Hourglass Dirac Semimetal in the Nonpolar Phase of Ag${}_2$BiO${}_3$
• Observation of Dirac-Like Semi-Metallic Phase in NdSb
• Band engineering of Dirac surface states in topological insulators-based van der Waals heterostructures
• Magnetoresistance and Shubnikov-de Hass oscillation in YSb
• Fermi surface topology and large magnetoresistance in the topological semimetal candidate PrBi
• Broken symmetry driven topological semi-metal to gaped phase transitions in SrAgAs
• Bulk band inversion and surface Dirac cones in LaSb and LaBi : Prediction of a new topological heterostructure
• Multiple Triple-Point Fermions in Heusler Compounds
• First principles investigation of topological phase in XMR material TmSb under hydrostatic pressure
• Majorana fermions in topological insulator nanowires: from single superconducting nanowires to Josephson junctions