Many-body effects in topological Kondo insulators
نویسندگان
چکیده
منابع مشابه
Kondo breakdown in topological Kondo insulators.
Motivated by the observation of light surface states in SmB6, we examine the effects of surface Kondo breakdown in topological Kondo insulators. We present both numerical and analytic results which show that the decoupling of the localized moments at the surface disturbs the compensation between light and heavy electrons and dopes the Dirac cone. Dispersion of these uncompensated surface states...
متن کاملTopological Kondo insulators.
Kondo insulators are a particularly simple type of heavy electron material, where a filled band of heavy quasiparticles gives rise to a narrow band insulator. Starting with the Anderson lattice Hamiltonian, we develop a topological classification of emergent band structures for Kondo insulators and show that these materials may host three-dimensional topological insulating phases. We propose a ...
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Current theories of Kondo insulators employ the interaction of conduction electrons with localized Kramers doublets originating from a tetragonal crystalline environment, yet all Kondo insulators are cubic. Here we develop a theory of cubic topological Kondo insulators involving the interaction of Γ(8) spin quartets with a conduction sea. The spin quartets greatly increase the potential for str...
متن کاملTheory of topological Kondo insulators
Maxim Dzero,1 Kai Sun,2 Piers Coleman,3,4 and Victor Galitski2 1Department of Physics, Kent State University, Kent, Ohio 44242, USA 2Joint Quantum Institute and Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA 3Center for Materials Theory, Rutgers University, Piscataway, New Jersey 08854, USA 4Department of Physics, Royal Holloway,...
متن کاملA Theory of Topological Kondo Insulators
Maxim Dzero, Kai Sun, Piers Coleman and Victor Galitski 1 Department of Physics, Kent State University, Kent, OH 44242, USA 2 Joint Quantum Institute and Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD 20742, USA Center for Materials Theory, Rutgers University, Piscataway, NJ 08854, USA Department of Physics, Royal Holloway, University of London, ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2015
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.91.245127