Results 21 to 30 of about 53,071 (272)
Granular topological insulators [PDF]
Nanoscale, 2017 Granular conductors form an artificially engineered class of solid state materials wherein the microstructure can be tuned to mimic a wide range of otherwise inaccessible physical systems. At the same time, topological insulators (TIs) have become a cornerstone of modern condensed matter physics as materials hosting metallic states on the surface and ...
Abhishek Banerjee +5 more
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Magnetized topological insulator multilayers [PDF]
Proceedings of the National Academy of Sciences, 2020 Significance Topological insulators have Dirac cone surface states protected by time-reversal symmetry (TRS). Weak magnetic order in topological insulator thin films can lead to the quantum anomalous Hall effect (QAHE), which was first realized by magnetic doping of topological insulators to establish a fragile ferromagnetic ...
Chao Lei, Shu Chen, Allan H. MacDonald
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Induced spin texture in semiconductor/topological insulator heterostructures [PDF]
, 2011 We show that a semiconductor thin film can acquire a non-trivial spin texture due to the proximity effect induced by a topological insulator. The effect stems from coupling to the topological surface states and is present even when the insulator is doped.
G. D. Mahan +2 more
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Topological Kondo Insulators [PDF]
Physical Review Letters, 2010 Kondo insulators are 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 ...
Dzero, Maxim +3 more
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Nature Communications, 2023 An axion insulator is a three-dimensional (3D) topological insulator (TI), in which the bulk maintains the time-reversal symmetry or inversion symmetry but the surface states are gapped by surface magnetization.
Deyi Zhuo +12 more
doaj +1 more source
Topological Mott Insulators [PDF]
Physical Review Letters, 2008 5 Pages, 4 ...
Raghu, S. +3 more
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Fractionalized topological insulators [PDF]
Nature Physics, 2015 5 pages, 3 figures.
Maciejko, Joseph, Fiete, Gregory A.
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Bi1Te1 is a dual topological insulator
Nature Communications, 2017 Coexistence of a topological insulator phase and a topological crystalline insulator phase helps to maintain topological properties under a controlled symmetry breaking perturbation. Here, Eschbacket al. report a superlattice of Bi and Bi2Te3to be such a
Markus Eschbach +17 more
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Bimorphic Floquet topological insulators
Nature Materials, 2022 Topological theories have established a new set of rules that govern the transport properties in a wide variety of wave-mechanical settings. In a marked departure from the established approaches that induce Floquet topological phases by specifically tailored discrete coupling protocols or helical lattice motions, we introduce a new class of bimorphic ...
Georgios G. Pyrialakos +7 more
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Topological Insulators by Topology Optimization [PDF]
Physical Review Letters, 2019 An acoustic topological insulator (TI) is synthesized using topology optimization, a free material inverse design method. The TI appears spontaneously from the optimization process without imposing requirements on the existence of pseudo spin-1/2 states at the TI interface edge, or the Chern number of the topological phases. The resulting TI is passive;
Christiansen, Rasmus E. +2 more
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