[Wien] spin texture?

Ruben Weht ruweht at cnea.gov.ar
Fri Sep 30 22:24:04 CEST 2011


Dear Wien users,

I am trying to reproduce some papers regarding the
electronic structure of topological insulators
and system with an important Rashba interaction
(for instance BiTeI, Bi2Se3, etc).

On many of them people calculate the electronic band
structure (on a slab for a topological insulator
or in bulk for a Rashba system) and showed what
is called "spin texture", a non-collinear spin
arrangement along the resulting Fermi surface
(most of the time near a Dirac cone).
Almost all of those papers said that the electronic
structure was calculated using Wien2k.

In general those system have a very strong
spin-orbit coupling so, naively, I thought that
spins up and down were completely mixed.

Does anyone know how to calculate/plot that
property?
Do I have to use the non-collinear code, Wienncm?.

Thanks a lot for your help,

   Ruben

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