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 transit...
Main Authors: | , , , , , , , , , , , , |
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Format: | Online |
Language: | English |
Published: |
Nature Publishing Group
2015
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Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4621505/ |