Publications (5)
Ubiquitous impact of localised impurity states on the exchange coupling mechanism in magnetic topological insulators
Thiago R. F. Peixoto, Hendrik Bentmann, Philipp RüÃmann +27
Since the discovery of the quantum anomalous Hall effect in the magnetically doped topological insulators (MTI) Cr:(Bi,Sb)Te and V:(Bi,Sb)Te, the search for the exc…
Non-Majorana Origin of the Half-Quantized Conductance Plateau in Quantum Anomalous Hall Insulator and Superconductor Hybrid Structures
Morteza Kayyalha, Di Xiao, Ruoxi Zhang +14
A quantum anomalous Hall (QAH) insulator coupled to an s-wave superconductor is predicted to harbor a topological superconducting phase, the elementary excitations of which (i.e. M…
Zero-field quantum anomalous Hall metrology as a step towards a universal quantum standard unit system
Martin Goetz, Kajetan M. Fijalkowski, Eckart Pesel +9
In the quantum anomalous Hall effect, the edge states of a ferromagnetically doped topological insulator exhibit quantized Hall resistance and dissipationless transport at zero mag…
Impurity states in the magnetic topological insulator V:(Bi,Sb)Te
Thiago R. F. Peixoto, Hendrik Bentmann, Steffen Schreyeck +12
The ferromagnetic topological insulator V:(Bi,Sb)Te has been recently reported as a quantum anomalous Hall (QAH) system. Yet the microscopic origins of the QAH effect and t…
Coexistence of surface and bulk ferromagnetism mimics skyrmion Hall effect in a topological insulator
Kajetan M. Fijalkowski, Matthias Hartl, Martin Winnerlein +5
Here we report the investigation of the anomalous Hall effect in the magnetically doped topological insulator (V,Bi,Sb)2Te3. We find it contains two contributions of opposite sign.…