scholarly journals Electric-field-tuned topological phase transition in ultrathin Na3Bi

Nature ◽  
2018 ◽  
Vol 564 (7736) ◽  
pp. 390-394 ◽  
Author(s):  
James L. Collins ◽  
Anton Tadich ◽  
Weikang Wu ◽  
Lidia C. Gomes ◽  
Joao N. B. Rodrigues ◽  
...  
RSC Advances ◽  
2017 ◽  
Vol 7 (50) ◽  
pp. 31393-31400 ◽  
Author(s):  
Sushant Kumar Behera ◽  
Pritam Deb

Electric field induced field-effect mobility and nontrivial Z2 topological phase transition in graphene sandwiched by h-BN bilayers.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Milad Jangjan ◽  
Mir Vahid Hosseini

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.


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