Results 31 to 40 of about 5,529 (134)
Higher-order topological insulators [PDF]
A new class of materials that are insulating in the bulk and on surfaces but have conducting hinge channels is studied.
Schindler, Frank +6 more
openaire +7 more sources
Simplified Topological Invariants for Interacting Insulators
We propose general topological order parameters for interacting insulators in terms of the Green’s function at zero frequency. They provide a unified description of various interacting topological insulators including the quantum anomalous Hall ...
Zhong Wang, Shou-Cheng Zhang
doaj +1 more source
Defects profoundly affect the magnetic, electronic structure and topological behaviour of intrinsic magnetic topological insulators. Here, we investigate the magnetic, structural stability and topological properties of different Te atomic sites in the ...
Wen-Ti Guo, Zhigao Huang, Jian-Min Zhang
doaj +1 more source
Photonic topological Anderson insulators [PDF]
20 pages, 4 ...
Stützer, Simon +7 more
openaire +3 more sources
Topological Invariants and Ground-State Wave functions of Topological Insulators on a Torus
We define topological invariants in terms of the ground-state wave functions on a torus. This approach leads to precisely defined formulas for the Hall conductance in four dimensions and the topological magnetoelectric θ term in three dimensions, and ...
Zhong Wang, Shou-Cheng Zhang
doaj +1 more source
Plasmonics in Topological Insulators
With strong spin-orbit coupling, topological insulators have an insulating bulk state, characterized by a band gap, and a conducting surface state, characterized by a Dirac cone.
Yi-Ping Lai +3 more
doaj +1 more source
Interaction-driven Chern insulating phases in the α−T3 lattice with Rashba spin-orbit coupling
Summary: The magnetic interaction is a necessary ingredient to break the time-reversal symmetry in realizing quantum anomalous Hall, or Chern insulating phases.
Shi-Qing Lin +3 more
doaj +1 more source
Topological crystalline insulator nanostructures [PDF]
Topological crystalline insulators are topological insulators whose surface states are protected by the crystalline symmetry, instead of the time reversal symmetry.
Shen, Jie, Cha, Judy J.
openaire +3 more sources
Photonic Floquet topological insulators [PDF]
21 pages, 5 ...
Mikael C. Rechtsman +8 more
openaire +3 more sources
Topological crystalline insulators are phases of matter where the crystalline symmetries solely protect the topology. In this work, we explore the effect of many-body interactions in a subclass of topological crystalline insulators, namely the mirror ...
Devendra Singh Bhakuni, Amrita Ghosh, Eytan Grosfeld
doaj +1 more source

