Results 21 to 30 of about 551,694 (368)
Topological Insulator Metamaterials
Chemical Reviews, 2023 Confinement of electromagnetic fields at the subwavelength scale via metamaterial paradigms is an established method to engineer light-matter interaction in most common material systems, from insulators to semiconductors, from metals to superconductors.
Harish N. S. Krishnamoorthy +3 more
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Polarization-Induced Phase Transitions in Ultra-Thin InGaN-Based Double Quantum Wells
Nanomaterials, 2022 We investigate the phase transitions and the properties of the topological insulator in InGaN/GaN and InN/InGaN double quantum wells grown along the [0001] direction.
Sławomir P. Łepkowski +1 more
doaj +1 more source
Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator [PDF]
Science, 2013 Quantized and Anomalous The Hall effect, an electromagnetic phenomenon with a straightforward explanation, has many exotic counterparts, including a quantized version occurring independently of the presence of external magnetic fields.
Cui-Zu Chang +22 more
semanticscholar +1 more source
Quantum anomalous Hall effect in intrinsic magnetic topological insulator MnBi2Te4 [PDF]
Science, 2019 Quantum anomalous Hall goes intrinsic Quantum anomalous Hall effect—the appearance of quantized Hall conductance at zero magnetic field—has been observed in thin films of the topological insulator Bi2Se3 doped with magnetic atoms.
Yujun Deng +7 more
semanticscholar +1 more source
Spinful hinge states in the higher-order topological insulators WTe2
Nature Communications, 2023 The standard topological insulator is characterized by an insulating bulk and a conducting boundary, so a three dimensional insulating bulk of a topological insulator has a conducting surface. Recently, this idea was extended to the edges of the surfaces
Jekwan Lee +8 more
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Superconducting proximity effect and majorana fermions at the surface of a topological insulator. [PDF]
Physical Review Letters, 2007 We study the proximity effect between an s-wave superconductor and the surface states of a strong topological insulator. The resulting two-dimensional state resembles a spinless px+ipy superconductor, but does not break time reversal symmetry. This state
L. Fu, C. Kane
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Fractional Topological Insulators [PDF]
Physical Review Letters, 2009 We analyze generalizations of two dimensional topological insulators which can be realized in interacting, time reversal invariant electron systems. These states, which we call fractional topological insulators, contain excitations with fractional charge and statistics in addition to protected edge modes.
Levin, Michael, Stern, Ady
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Non-Hermitian non-Abelian topological insulators with PT symmetry
Physical Review Research, 2021 We study a non-Hermitian non-Abelian topological insulator preserving PT symmetry, where the non-Hermitian term represents nonreciprocal hoppings. As it increases, a spontaneous PT symmetry breaking transition occurs in the perfect-flat band model from a
Motohiko Ezawa
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Circuit implementation of a four-dimensional topological insulator [PDF]
Nature Communications, 2020 The classification of topological insulators predicts the existence of high-dimensional topological phases that cannot occur in real materials, as these are limited to three or fewer spatial dimensions.
You Wang +3 more
semanticscholar +1 more source
Higher-order topological Mott insulator on the pyrochlore lattice
Scientific Reports, 2021 We provide the first unbiased evidence for a higher-order topological Mott insulator in three dimensions by numerically exact quantum Monte Carlo simulations.
Yuichi Otsuka +4 more
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