scholarly journals Tight-binding model investigation of the biaxial strain induced topological phase transition in GeCH3

2017 ◽  
Vol 96 (8) ◽  
Author(s):  
Mohsen Rezaei ◽  
Esmaeil Taghizadeh Sisakht ◽  
Farhad Fazileh ◽  
Zahra Aslani ◽  
F. M. Peeters
Keyword(s):  
Phase Transition ◽  
Tight Binding ◽  
Model Investigation ◽  
Topological Phase ◽  
Tight Binding Model ◽  
Biaxial Strain ◽  
Binding Model ◽  
Topological Phase Transition

scholarly journals External tuning of topological phase transitions induced by interaction driven mass renormalization

2021 ◽  
Author(s):  
Thies Jansen ◽  
Alexander Brinkman
Keyword(s):  
Phase Transition ◽  
Mean Field Theory ◽  
Tight Binding ◽  
Mean Field ◽  
Topological Phase ◽  
Binding Model ◽  
System A ◽  
Topological Phase Transition ◽  
Topological Phases Of Matter ◽  
Electron Interactions

Abstract Electron-electron interactions can be useful for realizing new nontrivial topological phases of matter. Here, we show by means of a tight-binding model and mean field theory how electron-electron interactions can lead to a topological phase transition. By externally adding or removing electrons from the system a band inversion between two bands with dierent parity is induced. This leads to a topological nontrivial phase if spin-orbit coupling is present. Besides the toy-model illustrating this mechanism, we also propose SmB6 as a possible playground for experimentally realizing a topological phase transition by external tuning.

Phase transition and shock Hugoniot of MgO using tight-binding model

2013 ◽  
Author(s):  
A. Y. Vahora ◽  
Prakruti Chaudhari ◽  
N. K. Bhatt ◽  
B. Y. Thakore ◽  
A. R. Jani
Keyword(s):  
Phase Transition ◽  
Tight Binding ◽  
Tight Binding Model ◽  
Binding Model ◽  
Shock Hugoniot

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 Topological Phase Transition and Phonon-Space Dirac Topology Surfaces in ZrTe5

2021 ◽  
Vol 126 (1) ◽  
Author(s):  
Niraj Aryal ◽  
Xilian Jin ◽  
Q. Li ◽  
A. M. Tsvelik ◽  
Weiguo Yin
Keyword(s):  
Phase Transition ◽  
Topological Phase ◽  
Topological Phase Transition
Sign in / Sign up

Export Citation Format

Share Document