scholarly journals Higgs mechanism, phase transitions, and anomalous Hall effect in three-dimensional topological superconductors

2015 ◽  
Vol 92 (22) ◽  
Author(s):  
Flavio S. Nogueira ◽  
Asle Sudbø ◽  
Ilya Eremin
Keyword(s):  
Phase Transitions ◽  
Hall Effect ◽  
Three Dimensional ◽  
Anomalous Hall Effect ◽  
Higgs Mechanism ◽  
Topological Superconductors

Giant photoinduced anomalous Hall effect of the topological surface states in three dimensional topological insulators Bi2Te3

2020 ◽  
Vol 116 (14) ◽  
pp. 141603
Author(s):  
Jinling Yu ◽  
Wenyi Wu ◽  
Yumeng Wang ◽  
Kejing Zhu ◽  
Xiaolin Zeng ◽  
...  
Keyword(s):  
Hall Effect ◽  
Topological Insulators ◽  
Three Dimensional ◽  
Surface States ◽  
Anomalous Hall Effect ◽  
Topological Surface

scholarly journals Nonlinear dynamics induced anomalous Hall effect in topological insulators

2016 ◽  
Vol 2016 (DPC) ◽  
pp. 001543-001553
Author(s):  
Guanglei Wang ◽  
Hongya Xu ◽  
Ying-Cheng Lai
Keyword(s):  
Hall Effect ◽  
Three Dimensional ◽  
Anomalous Hall Effect ◽  
Transmission Probability ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Alternative Mechanism ◽  
Final States ◽  
Nonlinear Dynamical ◽  
Dynamical Behaviors

We uncover an alternative mechanism for anomalous Hall effect. In particular, we investigate the magnetisation dynamics of an insulating ferromagnet (FM) deposited on the surface of a three-dimensional topological insulator (TI), subject to an external voltage. The spin-polarised current on the TI surface induces a spin-transfer torque on the magnetisation of the top FM while its dynamics can change the transmission probability of the surface electrons through the exchange coupling and hence the current. We find a host of nonlinear dynamical behaviors including multistability, chaos, and phase synchronisation. Strikingly, a dynamics mediated Hall-like current can arise, which exhibits a nontrivial dependence on the channel conductance. We develop a physical understanding of the mechanism that leads to the anomalous Hall effect. The nonlinear dynamical origin of the effect stipulates that a rich variety of final states exist, implying that the associated Hall current can be controlled to yield desirable behaviors. The phenomenon can find applications in Dirac-material based spintronics.

scholarly journals Comparing the anomalous Hall effect and the magneto-optical Kerr effect through antiferromagnetic phase transitions in Mn3Sn

2019 ◽  
Vol 114 (3) ◽  
pp. 032401 ◽  
Author(s):  
A. L. Balk ◽  
N. H. Sung ◽  
S. M. Thomas ◽  
P. F. S. Rosa ◽  
R. D. McDonald ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Hall Effect ◽  
Kerr Effect ◽  
Anomalous Hall Effect ◽  
Optical Kerr Effect ◽  
Antiferromagnetic Phase ◽  
Magneto Optical Kerr Effect
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