Photoinduced topological phase transition and spin polarization in a two-dimensional topological insulator

2016 ◽  
Vol 94 (20) ◽  
Author(s):  
M. N. Chen ◽  
W. Su ◽  
M. X. Deng ◽  
Jiawei Ruan ◽  
W. Luo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Spin Polarization ◽  
Topological Insulator ◽  
Topological Phase ◽  
Two Dimensional ◽  
Topological Phase Transition

scholarly journals Experimental Observation of Temperature-Driven Topological Phase Transition in HgTe/CdHgTe Quantum Wells

2019 ◽  
Author(s):  
Maksim Zholudev ◽  
Aleksandr Kadykov ◽  
Mikhail Fadeev ◽  
Michal Marcinkiewicz ◽  
Sandra Ruffenach ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Quantum Wells ◽  
Topological Insulator ◽  
Critical Magnetic Field ◽  
Topological Phase ◽  
Temperature Dependent ◽  
Transition Parameter ◽  
Topological Phase Transition ◽  
Band Insulator

We report on comparison between temperature-dependent magneto¬absorption and magnetotransport spectroscopy of HgTe/CdHgTe quantum wells in terms of detection of phase transition between topological insulator and band insulator states. Our results demonstrate that temperature-dependent magnetospectroscopy is a powerful tool to discriminate trivial and topological insulator phases, yet magnetotransport method is shown to have advantages for clear manifestation of the phase transition with accurate quantitative values of transition parameter (i.e. critical magnetic field Bc).

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

scholarly journals Experimental Observation of Temperature-Driven Topological Phase Transition in HgTe/CdHgTe Quantum Wells

2019 ◽  
Vol 4 (1) ◽  
pp. 27 ◽  
Author(s):  
Maksim S. Zholudev ◽  
Aleksandr M. Kadykov ◽  
Mikhail A. Fadeev ◽  
Michal Marcinkiewicz ◽  
Sandra Ruffenach ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Quantum Wells ◽  
Topological Insulator ◽  
Critical Magnetic Field ◽  
Topological Phase ◽  
Temperature Dependent ◽  
Transition Parameter ◽  
Topological Phase Transition ◽  
Band Insulator

We report on the comparison between temperature-dependent magneto-absorption and magnetotransport spectroscopy of HgTe/CdHgTe quantum wells in terms of the detection of the phase transition between the topological insulator and band insulator states. Our results demonstrate that temperature-dependent magnetospectroscopy is a powerful tool to discriminate trivial and topological insulator phases, yet the magnetotransport method is shown to have advantages for the clear manifestation of the phase transition with accurate quantitative values of the transition parameter (i.e., critical magnetic field Bc).

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