Ellipticity and Spurious Solutions in k.p Calculations of III-Nitride Nanostructures
- Conference Paper
We analyze the ellipticity of the standard kldrp Wurtzite model for the symmetrized and the Burt-Foreman operator ordering. We find that the symmetrized Hamiltonian is unstable, leads to different results and can cause spurious solutions. We show that the operator ordering in Wurtzite must be completely asymmetric to be stable. The asymmetric operator ordering is elliptic and therefore no spurious solutions are obtained. Show more
Book title2008 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)
Pages / Article No.
Subjectk.p; spurious solutions; finite element method; nanostructures; operator ordering; nitride; wurtzite
Organisational unit03228 - Fichtner, Wolfgang
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