Loewdin calculus for multiband Hamiltonians
Materials Science
2011-03-15 v2
Abstract
This appendix to the paper by Werpachowska and Dietl "Theory of spin waves in ferromagnetic (Ga,Mn)As" (DOI: 10.1103/PhysRevB.82.085204) is a response to inquiries about the derivation of the Loewdin calculus and its numerical implementation. It presents the detailed version of the Loewdin calculus for the multiband Hamiltonian taking into account both the p-d and s-d exchange couplings. This should explain how to implement the sp-d exchange interaction in the tight-binding computational scheme. I also include the complete procedure of the Bogoliubov transform for systems with spatial inversion asymmetry.
Cite
@article{arxiv.1101.5775,
title = {Loewdin calculus for multiband Hamiltonians},
author = {Agnieszka Werpachowska},
journal= {arXiv preprint arXiv:1101.5775},
year = {2011}
}
Comments
8 + epsilon pages, no figures, one column (corrected)