Found 388 results, showing the newest relevant preprints. Sort by relevancy only.Update me on new preprints

Plasmon-polaritonic quadrupole topological insulators

Here, we propose a lattice of plasmon-polaritonic nanocavities which can realize quadrupole topological insulators by exploiting the geometry-dependent sign-reversal of the couplings between the daisy-like nanocavities. Expand abstract.
107 days ago
10/10 relevant
arXiv

Quasiperiodic dynamical quantum phase transitions in multiband topological insulators and connections with entanglement entropy and fidelity susceptibility

We investigate the Loschmidt amplitude and dynamical quantum phase transitions in multiband one dimensional topological insulators. Expand abstract.
109 days ago
9/10 relevant
arXiv

Observation of optical absorption correlated with surface state of topological insulator

These observations combined together demonstrate that under the hw=1eV illumination electron is excited from a bulk band into the topological surface band of Bi2Se3. Expand abstract.
109 days ago
7/10 relevant
arXiv

Finite-dimensional bistable topological insulators: From small to large

In this work using as an example realistic polariton topological insulators built from small-size honeycomb arrays of microcavity pillars, we illustrate how topological properties of the system build up upon gradual increase of its dimensionality. Expand abstract.
109 days ago
10/10 relevant
arXiv

Electronic transport in one-dimensional Floquet topological insulators via topological- and non-topological edge states

Based on probing electronic transport properties, we propose an experimental test for the recently discovered rich topological phase diagram of one-dimensional Floquet topological insulators with Rashba spin-orbit interaction [Kennes \emph{et al.}, Phys. Expand abstract.
110 days ago
10/10 relevant
arXiv

Influence of point defects on the electronic and topological properties of monolayer WTe$_2$

In some topological insulators, such as graphene and WTe$_2$, band inversion originates from chemical bonding and space group symmetry, in contrast to materials such as Bi$_2$Se$_3$, where the band inversion derives from relativistic effects in the atoms. Expand abstract.
111 days ago
4/10 relevant
arXiv

Efficient spin-orbit torque switching with non-epitaxial chalcogenide heterostructures

The spin-orbit torques (SOTs) generated from topological insulators (TIs) have gained increasing attention in recent years. Expand abstract.
114 days ago
4/10 relevant
arXiv

Giant unidirectional magnetoresistance in topological insulator -- ferromagnetic semiconductor heterostructures

The unidirectional magnetoresistance (UMR) is one of the most complex spin-dependent transport phenomena in ferromagnet/non-magnet bilayers, which involves spin injection and accumulation due to the spin Hall effect (SHE) or Rashba-Edelstein effect (REE), spin-dependent scattering, and magnon scattering at the interface or in the bulk of the ferromagnet. Expand abstract.
115 days ago
7/10 relevant
arXiv

Lateral lattice coherence lengths in thin films of bismuth telluride topological insulators, with overview on polarization factors for X-ray dynamical diffraction in monochromator crystals

In the supporting information file for article Dynamics of Defects in van der Waals Epitaxy of Bismuth Telluride Topological Insulators(J. Expand abstract.
115 days ago
8/10 relevant
arXiv

Topological Insulators beyond Energy Band Characterization

Our study opens a new direction for exploring topological phases beyond conventional energy band characterization. Expand abstract.
117 days ago
8/10 relevant
arXiv