Electronic structure of core-shell nanowires

Dnr:

SNIC 2016/4-64

Type:

SNAC Small

Principal Investigator:

Martin Leijnse

Affiliation:

Lunds universitet

Start Date:

2016-11-01

End Date:

2017-11-01

Primary Classification:

10304: Den kondenserade materiens fysik

Webpage:

http://www.ftf.lth.se/research/faculty-by-name/martin-leijnse/

Allocation

Abstract

The purpose of this project is to calculate the electronic structure of III-V semiconductor core-shell nanowires, for example InAs-GaSb. This is directly related to experiments done at the Solid State Physics Division at Lund University. The calculations will primarily use k.p theory combined with the envelope function approximation. Both applied electric and magnetic fields will be taken into account, which, in combination with the heterostructured nanowires leads to significant computational costs as most symmetries are broken. We are now starting a second phase of this research program, in which we investigate the possible topological properties of core-shell and core-shell-shell nanowires. This will involve the same type of k.p calculations we used previously, but also tight-binding methods will be used.