Results 61 to 70 of about 45,930 (178)
Variable-order topological insulators
Communications Physics, 2023 Topological insulators, either the first-order or the higher-order, experience generally a transition to a trivial phase or a topological one of the same order through the gap closing and reopening procedure.
Yating Yang +5 more
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Topological crystalline insulator states in Pb(1-x)Sn(x)Se
, 2012 Topological insulators are a novel class of quantum materials in which time-reversal symmetry, relativistic (spin-orbit) effects and an inverted band structure result in electronic metallic states on the surfaces of bulk crystals.
A Szczerbakow +39 more
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Huge magnetoresistance in topological insulator spin-valves at room temperature
Scientific Reports, 2021 Topological insulators (TI) have extremely high potential in spintronic applications. Here, a topological insulators thin-film (TITF) spin valve with the use of the segment gate-controlled potential exhibits a huge magnetoresistance (MR) value higher ...
Peng Tseng +2 more
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Effective hydrodynamic field theory and condensation picture of topological insulators
, 2015 While many features of topological band insulators are commonly discussed at the level of single-particle electron wave functions, such as the gapless Dirac spectrum at their boundary, it remains elusive to develop a {\it hydrodynamic} or {\it collective}
Chan, AtMa P. O. +3 more
core +1 more source
Topological Insulators with Inversion Symmetry [PDF]
, 2007 Topological insulators are materials with a bulk excitation gap generated by the spin orbit interaction, and which are different from conventional insulators.
B. A. Volkov +10 more
core +4 more sources
Observation of hybrid higher-order skin-topological effect in non-Hermitian topolectrical circuits
Nature Communications, 2021 Even though exploiting skin-topological effects in topological insulators is attractive for topological switch design, current research has focused on theoretical demonstrations.
Deyuan Zou +6 more
doaj +1 more source
Z_2 Topological Insulators in Ultracold Atomic Gases
, 2011 We describe how optical dressing can be used to generate bandstructures for ultracold atoms with non-trivial Z_2 topological order. Time reversal symmetry is preserved by simple conditions on the optical fields.
Béri, B., Cooper, N. R.
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An Introduction to Topological Insulators [PDF]
, 2013 Electronic bands in crystals are described by an ensemble of Bloch wave functions indexed by momenta defined in the first Brillouin Zone, and their associated energies.
Carpentier, David, Fruchart, Michel
core +4 more sources
Helical Edge Modes near Transition to Topological Insulator with Indirect Gap
, 2010 Helical edge modes are characteristic of topological insulators in two dimensions. This paper demonstrates that helical edge modes remain across transitions to ordinary insulators or to semimetals under certain condition.
Kuramoto, Yoshio, Mao, Shijun
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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 x
Lam, Ho Tat, Han, Jung Hoon, You, Yizhi
openaire +3 more sources