Growth and Characterization of Hybrid Insulating Ferromagnet-Topological Insulator Heterostructure Devices
arXiv:1212.1225 · doi:10.1063/1.4831987
Abstract
We report the integration of the insulating ferromagnet GdN with epitaxial films of the topological insulator Bi2Se3 and present detailed structural, magnetic and transport characterization of the heterostructures. Fabrication of multi-channel Hall bars with bare and GdN-capped sections enables direct comparison of magnetotransport properties. We show that the presence of the magnetic overlayer results in suppression of weak anti-localization at the top surface.
The title and content of this manuscript have been significantly revised taking into account newly acquired data