scholarly journals Topological phase transition based on structure reversal of two-dimensional photonic crystals and construction of topological edge states

2020 ◽  
Vol 69 (18) ◽  
pp. 184101
Author(s):  
Yun-Tuan Fang ◽  
Zhang-Xin Wang ◽  
Er-Pan Fan ◽  
Xiao-Xue Li ◽  
Hong-Jin Wang
Keyword(s):  
Phase Transition ◽  
Photonic Crystals ◽  
Topological Phase ◽  
Two Dimensional ◽  
Edge States ◽  
Topological Phase Transition

Nontrivial topology and topological phase transition in two-dimensional monolayer Tl

2018 ◽  
Vol 20 (38) ◽  
pp. 24790-24795 ◽  
Author(s):  
Jin Zhang ◽  
Wei-xiao Ji ◽  
Chang-wen Zhang ◽  
Ping Li ◽  
Pei-ji Wang
Keyword(s):  
Phase Transition ◽  
Topological Phase ◽  
Two Dimensional ◽  
Edge States ◽  
Insulating Material ◽  
Topological Phase Transition ◽  
Nontrivial Topology

Topological insulating material with dissipationless edge states is a rising star in spintronics.

scholarly journals Topological phase transition between a normal insulator and a topological metal state in a quasi-one-dimensional system

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Milad Jangjan ◽  
Mir Vahid Hosseini
Keyword(s):  
Phase Transition ◽  
Dimensional System ◽  
Inversion Symmetry ◽  
Topological Phase ◽  
Edge States ◽  
Zero Energy ◽  
One Dimensional ◽  
Topological Phase Transition ◽  
Metal State ◽  
Topological Metal

AbstractWe theoretically report the finding of a new kind of topological phase transition between a normal insulator and a topological metal state where the closing-reopening of bandgap is accompanied by passing the Fermi level through an additional band. The resulting nontrivial topological metal phase is characterized by stable zero-energy localized edge states that exist within the full gapless bulk states. Such states living on a quasi-one-dimensional system with three sublattices per unit cell are protected by hidden inversion symmetry. While other required symmetries such as chiral, particle-hole, or full inversion symmetry are absent in the system.

scholarly journals Controllable band structure and topological phase transition in two-dimensional hydrogenated arsenene

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ya-ping Wang ◽  
Wei-xiao Ji ◽  
Chang-wen Zhang ◽  
Ping Li ◽  
Feng Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Band Structure ◽  
Topological Phase ◽  
Two Dimensional ◽  
Topological Phase Transition
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