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A recent ARPES study on surface doped black phosphorus reported funny non-monotonous k(E) dispersions near the chemical potential [1]. I will discuss this paper and show that dispersive “band-like” features in ARPES do not always imply Bloch states. If time permits, I will try to make links to recent work on disordered moiré super lattices.
Please register before Thursday 17 November, 19:00, for the pizza at this doodle.


Location: Stuckelberg, Ecole de Physique
Time: Friday 18 November 2022, 12:00 for pizza, 12:30 start discussion