Prospect of quantum anomalous Hall and quantum spin Hall effect in doped kagome lattice Mott insulators

Abstract

Electronic states with non-trivial topology host a number of novel phenomena with potential for revolutionizing information technology. The quantum anomalous Hall effect provides spin-polarized dissipation-free transport of electrons, while the quantum spin Hall effect in combination with superconductivity has been proposed as the basis for realizing decoherence-free quantum computing. We introduce a new strategy for realizing these effects, namely by hole and electron doping kagome lattice Mott insulators through, for instance, chemical substitution. As an example, we apply this new approach to the natural mineral herbertsmithite. We prove the feasibility of the proposed modifications by performing ab-initio density functional theory calculations and demonstrate the occurrence of the predicted effects using realistic models. Our results herald a new family of quantum anomalous Hall and quantum spin Hall insulators at affordable energy/temperature scales based on kagome lattices of transition metal ions.

In revision 2 the manuscript has been split; Results on isoelectronic doping of Herbertsmithite and Barlowite will be published in a separate manuscript

References in corpus (13)

• Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
• Topological Insulators with Inversion Symmetry
• Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
• Quantized Anomalous Hall Effect in Magnetic Topological Insulators
• High temperature fractional quantum Hall states
• Prediction of Near-Room-Temperature Quantum Anomalous Hall Effect on Honeycomb Materials
• Fermi Arcs in a Doped Pseudospin-1/2 Heisenberg Antiferromagnet
• Theoretical prediction of a strongly correlated Dirac metal
• Helical edge and surface states in HgTe quantum wells and bulk insulators
• The magnetic groundstate of an experimental $S=1/2$ kagomé antiferromagnet
• Chern insulators from heavy atoms on magnetic substrates
• Mott transition in Kagomé lattice Hubbard model
• Barlowite: A Spin-1/2 Antiferromagnet with a Geometrically Perfect Kagome Motif

Cited by in corpus (22)

• Herbertsmithite and the Search for the Quantum Spin Liquid
• Symmetry Reduction in the Quantum Kagome Antiferromagnet Herbertsmithite
• Strong magnetic frustration in Y${}_3$Cu${}_9$(OH)${}_{19}$Cl${}_8$: a distorted kagome antiferromagnet
• Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite
• Realizing Haldane Model in Fe-based Honeycomb Ferromagnetic Insulators
• Reduction of magnetic interlayer coupling in barlowite through isoelectronic substitution
• Local study of the insulating quantum kagome antiferromagnets YCu3(OH)6OxCl3-x (x=0,1/3)
• Nature of optical excitations in the frustrated kagome compound Herbertsmithite
• Boron Triangular Kagome Lattice with Half-Metallic Ferromagnetism
• Quantum spin Hall effect in rutile-based oxide multilayers
• Kagome metals
• Infrared phonons as a probe of a spin-liquid states in herbertsmithite ZnCu3(OH)6Cl2
• Statistical learning of engineered topological phases in the kagome superlattice of AV${}_3$Sb${}_5$
• Cascade of phase transitions and large magnetic anisotropy in a triangle-kagome-triangle trilayer antiferromagnet
• Interplay between strong correlations and electronic topology in the underlying kagome lattice of Na2/3CoO2
• Electronic States and Anomalous Hall Effect in Strongly Correlated Topological Systems
• Lattice dynamics study of electron-correlation-induced charge density wave in antiferromagnetic kagome metal FeGe
• Engineering two-dimensional kagome topological insulator from porous graphene
• RKKY plateau in zero- and one-dimensional triangular Kagome lattice models
• Magnetic properties and field-induced phenomena in the Jeff = 1/2 distorted kagome antiferromagnet
• Concurrence of topological electrons and magnons in the Kagome ferromagnet CoCu3(OH)6Cl2
• Unconventional spin transport in strongly correlated kagome systems