Results 11 to 20 of about 551,694 (368)
Topological Anderson Insulator
Physical Review Letters, 2008 Disorder plays an important role in two dimensions, and is responsible for striking phenomena such as metal insulator transition and the integral and fractional quantum Hall effects.
Chu, Rui-Lin +3 more
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Topological-insulator nanocylinders
SciPost Physics Core, 2023 Nanostructures, such a quantum dots or nanoparticles, made of three-dimensional topological insulators (3DTIs) have been recently attracting increasing interest, especially for their optical properties. In this paper we calculate the energy spectrum, the
Michele Governale, Fabio Taddei
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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 ...
C. Lei, Shu Chen, A. Macdonald
semanticscholar +5 more sources
SciPost PhysicsWe expand the concept of two-dimensional topological insulators to encompass a novel category known as topological dipole insulators (TDIs), characterized by conserved dipole moments along the $x$-direction in addition to charge conservation.
Ho Tat Lam, Jung Hoon Han, Yizhi You
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Topologically Localized Insulators [PDF]
Physical Review Letters, 2022 We show that fully-localized, three-dimensional, time-reversal-symmetry-broken insulators do not belong to a single phase of matter but can realize topologically distinct phases that are labelled by integers. The phase transition occurs only when the system becomes conducting at some filling.
Bastien Lapierre +2 more
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Topological insulator laser: Experiments
Science, 2018 Miguel A Bandres +2 more
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Exceptional topological insulators [PDF]
Nature Communications, 2021 AbstractWe introduce the exceptional topological insulator (ETI), a non-Hermitian topological state of matter that features exotic non-Hermitian surface states which can only exist within the three-dimensional topological bulk embedding. We show how this phase can evolve from a Weyl semimetal or Hermitian three-dimensional topological insulator close ...
Denner, M Michael +6 more
openaire +7 more sources
Experimental signature of the parity anomaly in a semi-magnetic topological insulator [PDF]
Nature Physics, 2021 A three-dimensional (3D) topological insulator features a 2D surface state consisting of a single linearly dispersive Dirac cone1–3. Under broken time-reversal symmetry, the single Dirac cone is predicted to cause half-integer quantization of Hall ...
M. Mogi +11 more
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Evidence of a room-temperature quantum spin Hall edge state in a higher-order topological insulator [PDF]
Nature Materials, 2021 Room-temperature realization of macroscopic quantum phases is one of the major pursuits in fundamental physics1,2. The quantum spin Hall phase3–6 is a topological quantum phase that features a two-dimensional insulating bulk and a helical edge state ...
N. Shumiya +26 more
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Topological insulator laser: Theory [PDF]
Science, 2018 Topological protection for lasersIdeas based on topology, initially developed in mathematics to describe the properties of geometric space under deformations, are now finding application in materials, electronics, and optics. The main driver is topological protection, a property that provides stability to a system even in the presence of defects ...
G. Harari +7 more
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