Results 51 to 60 of about 5,529 (134)

Higher‐Order Topological States in Surface‐Wave Photonic Crystals

Advanced Science, 2020
Photonic topological states have revolutionized the understanding of the propagation and scattering of light. The recent discovery of higher‐order photonic topological insulators opens an emergent horizon for 0D topological corner states.
Li Zhang, Yihao Yang, Zhi‐Kang Lin, Pengfei Qin, Qiaolu Chen, Fei Gao, Erping Li, Jian‐Hua Jiang, Baile Zhang, Hongsheng Chen   +9 more
doaj   +1 more source

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, Handa Sun, Jiuyang Lu, Xueqin Huang, Weiyin Deng, Zhengyou Liu   +5 more
doaj   +1 more source

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, Jyun-Wei Chen, Wen-Jeng Hsueh   +2 more
doaj   +1 more source

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, Tian Chen, Wenjing He, Jiacheng Bao, Ching Hua Lee, Houjun Sun, Xiangdong Zhang   +6 more
doaj   +1 more source

Standard model as the topological material

New Journal of Physics, 2017
The study of the Weyl and Dirac topological materials (topological semimetals, insulators, superfluids and superconductors) opens the route for the investigation of the topological quantum vacua of relativistic fields. The symmetric phase of the standard
G E Volovik, M A Zubkov
doaj   +1 more source

Higher-order topological biphoton corner states in two-dimensional photonic lattices

Physical Review Research, 2022
Higher-order topological insulators have attracted great interest for their unconventional bulk-boundary correspondence especially gapless corner states. Here, we realize topological biphoton corner states in two-dimensional lattices.
Chu Li, Meng Li, Linyu Yan, Sheng Ye, Xiaoyong Hu, Qihuang Gong, Yan Li   +6 more
doaj   +1 more source

Topological dipole insulator

SciPost Physics
We 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

Topological insulators

10 pages, 2 figures; a chapter for Encyclopedia of Condensed Matter Physics (Elsevier, 2nd Edition)
  +5 more sources

Floquet non-Abelian topological insulator and multifold bulk-edge correspondence

Nature Communications, 2023
Topological phases characterized by non-Abelian charges are beyond the scope of the paradigmatic tenfold way and have gained increasing attention recently.
Tianyu Li, Haiping Hu
doaj   +1 more source

Topological Crystalline Insulators

Physical Review Letters, 2011
published version, added an appendix on the stability of surface ...
openaire   +4 more sources