Speaker
Prof.
Gerd Schoenhense
(University of Mainz, Inst fuer Physik)
Description
The shape of the Fermi surface and the Fermi velocity vF as a function of direction in k-space are of high importance for the design of materials with tailored electronic properties. Moreover, the topology of the Fermi surface plays a crucial role in the existence of topologically non-trivial electronic states like the metallic states in the surface region of topological insulators. The novel experimental technique termed time-of-flight momentum microscopy has been applied for the first time in the soft X-ray range at P04. We determined the topology of the Fermi surface, the character of p- or n-type conductivity and quantified vF on the full Fermi surface for the model case of W.
Primary author
Prof.
Gerd Schoenhense
(University of Mainz, Inst fuer Physik)
