Tuesday, July 9, 2013

1307.2008 (Olivier Crauste et al.)

Topological surface states of strained Mercury-Telluride probed by ARPES    [PDF]

Olivier Crauste, Yoshiyuki Ohtsubo, Philippe Ballet, Pierre André Louis Delplace, David Carpentier, Clément Bouvier, Tristan Meunier, Amina Taleb-Ibrahimi, Laurent Lévy
The topological surface states of strained HgTe have been measured using high-resolution ARPES measurements. The dispersion of surface states form a Dirac cone, which origin is close to the top of the \ghh band: the top half of the Dirac cone is inside the stress-gap while the bottom half lies within the heavy hole bands and keeps a linear dispersion all the way to the X-point. The circular dichroism of the photo-emitted electron intensity has also been measured for all the bands.
View original: http://arxiv.org/abs/1307.2008

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