Bahramy, M. S.King, P. D. C.De La Torre, A.Chang, Johan JuulShi, M.Patthey, L.Balakrishnan, G.Hofmann, Ph.Arita, R.Nagaosa, N.Baumberger, F.2012-12-042012-12-042012-12-04201210.1038/ncomms2162https://infoscience.epfl.ch/handle/20.500.14299/87170Emergent quantum confinement at topological insulator surfacestext::journal::journal article::research article