Joseph Checkelsky

Affiliation: 
Massachussets Institute of Technology
date: 
2014-04-23
sujet: 
Magnetism and Quantum Hall States in Topological Insulators
résumé: 

Breaking of time reversal symmetry has proven to be an incisive method for experimentally drawing out the exotic nature of topological insulators.  In particular, the introduction of magnetic dopants in to three dimensional topological insulators has led to the realization of theoretically predicted novel types of ferromagnetic order and pathways to realizing a quantized version of the anomalous Hall effect.  Here, I will present recent work on the synthesis and measurement of bulk and thin film topological insulators doped with 3d transition metals.  I will discuss the ferromagnetic order that arises in various systems, the associated electrical transport response of the surface modes, and connections to quantum Hall states. 

série: 
RQMP
invité par: :