Results 91 to 100 of about 176,214 (315)
Topological quantum transition driven by charge-phonon coupling in the Haldane Chern insulator
, 2019 In condensed matter physics many features can be understood in terms of their topological properties. Here we report evidence of a topological quantum transition driven by the charge-phonon coupling in the spinless Haldane model on a honeycomb lattice, a
Cangemi, L. M. +4 more
core +1 more source
Photoresponsive Gas‐Permeable Membranes: Fundamentals, Innovations, and Prospects
Advanced Functional Materials, EarlyView.Photoresponsive gas‐permeable membranes can be potentially used for smart packing, carbon capture, hydrogen purification, and optical gas valves due to their remote and non‐contact activation, precise spatial and temporal control, and reversible switching capabilities.
Zhuan Wang +6 more
wiley +1 more source
On the $Z_2$ classification of Quantum Spin Hall Models
, 2006 We propose an alternative formulation of the $Z_2$ topological index for quantum spin Hall systems and band insulators when time reversal invariance is not broken.
M. Nakahara, Rahul Roy
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Locking Metastable Topological Domains in Nematic Liquid Crystal Pi Cells
Advanced Functional Materials, EarlyView.Selective photopolymerization in the presence of a controlled voltage defines permanent director walls that lock‐in metastable bend and twist configurations within nematic liquid crystal Pi cells. Q‐tensor simulations corroborate the experiments, demonstrating the topological state stabilization.
Adithya Pradeep +7 more
wiley +1 more source
, 2006 The concept of topological excitations and the related ground state degeneracy are employed to establish an effective theory of the superconducting state evolving from the Mott insulator for high-Tc cuprates.
C. Di Castro +15 more
core +1 more source
Dual Optical Hyperbolicity of PdCoO2 and PdCrO2 Delafossite Single Crystals
Advanced Functional Materials, EarlyView.In this work, the hyperbolic response of PdCoO₂ and PdCrO₂ delafossites is investigated for the first time. They exhibit dual hyperbolic regimes, one localized around a phonon absorption in the mid‐infrared spectral region, and the other extending into the visible range.
Salvatore Macis +14 more
wiley +1 more source
Topological Quantum Numbers of Relativistic Two-Particle Mixtures
, 2003 48 pages and 2 figures, http://www.theo2.physik.uni-stuttgart.de/institut/sorg/sorg ...
Pruss-Hunzinger, S., Rupp, S., Sorg, M.
openaire +2 more sources
A classical analog to topological non-local quantum interference effect
, 2003 The two main features of the Aharonov-Bohm effect are the topological dependence of accumulated phase on the winding number around the magnetic fluxon, and non-locality -- local observations at any intermediate point along the trajectories are not ...
Ady Stern +6 more
core +1 more source
Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide
Advanced Functional Materials, EarlyView.The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda +11 more
wiley +1 more source
Physical Review X, 2015 Bosonic topological insulators (BTIs) in three dimensions are symmetry-protected topological phases protected by time-reversal and boson number conservation symmetries.
Peng Ye, Zheng-Cheng Gu
doaj +1 more source