Three-Dimensional Topological Insulators in I-III-VI${}_2$ and II-IV-V${}_2$ Chalcopyrite Semiconductors

Abstract

The recent discovery of topological insulators with exotic metallic surface states has garnered great interest in the fields of condensed matter physics and materials science. A number of spectacular quantum phenomena have been predicted when the surface states are under the influence of magnetism and superconductivity, which could open up new opportunities for technological applications in spintronics and quantum computing. To achieve this goal, material realization of topological insulators with desired physical properties is of crucial importance. Based on first-principles calculations, here we show that a large number of ternary chalcopyrite compounds of composition I-III-VI${}_2$ and II-IV-V${}_2$ can realize the topological insulating phase in their native states. The crystal structure of chalcopyrites is derived from the frequently used zinc-blende structure, and many of them possess a close lattice match to important mainstream semiconductors, which is essential for a smooth integration into current semiconductor technology. The diverse optical, electrical and structural properties of chalcopyrite semiconductors, and particularly their ability to host room-temperature ferromagnetism, make them appealing candidates for novel spintronic devices.

5 pages, 4 figure

References in corpus (12)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Topological Insulators with Inversion Symmetry
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• Topological Field Theory of Time-Reversal Invariant Insulators
• Three dimensional topological invariants for time reversal invariant Hamiltonians and the three dimensional quantum spin Hall effect
• Time Reversal Polarization and a Z_2 Adiabatic Spin Pump
• Half-Heusler Compounds as a New Class of Three-Dimensional Topological Insulators
• Direct Evidence for the Dirac-Cone Topological Surface States in Ternary Chalcogenide TlBiSe2
• Tailoring ferromagnetic chalcopyrites

Cited by in corpus (10)

• Computing topological invariants without inversion symmetry
• Topological insulators and thermoelectric materials
• Topological phases in layered pyrochlore oxide thin films along the [111] direction
• Strain tuning of topological band order in cubic semiconductors
• Manifestly gauge independent formulations of the Z2 invariants
• Three-dimensional topological insulators: A review on host materials
• Prediction of topological insulating behavior in Hg2CuTi-type Heusler compounds from first principles
• Generalized Slater-Pauling rule for the inverse Heusler compounds
• Fabrication and characterization of the gapless half-Heusler YPtSb thin films
• Pressure-Driven Topological Phase Transition in the Yb Chalcogenides YbO and YbS