Growth and Characterization of Hybrid Insulating Ferromagnet-Topological Insulator Heterostructure Devices

摘要

We report the integration of the insulating ferromagnet GdN with epitaxialfilms of the topological insulator Bi2Se3 and present detailed structural,magnetic and transport characterization of the heterostructures. Fabrication ofmulti-channel Hall bars with bare and GdN-capped sections enables directcomparison of magnetotransport properties. We show that the presence of themagnetic overlayer results in suppression of weak anti-localization at the topsurface.