Massive Dirac fermion observed in lanthanide-doped topological insulator thin films

The breaking of time reversal symmetry (TRS) in three-dimensional (3D) topological insulators (TIs) and thus the opening of a ‘Dirac-mass gap’ in the linearly dispersed Dirac surface state, is a prerequisite for unlocking exotic physical states. Introducing ferromagnetic long-range order by transiti...

Full description

Bibliographic Details
Main Authors: Harrison, SE, Collins-McIntyre, LJ, Schönherr, P, Vailionis, A, Srot, V, van Aken, PA, Kellock, AJ, Pushp, A, Parkin, SSP, Harris, JS, Zhou, B, Chen, YL, Hesjedal, T
Format: Journal article
Language:English
Published: Nature Publishing Group 2015