Numerical studies on the Heisenberg Antiferromagnet on a Square Lattice – Niels Bohr Institute - University of Copenhagen

Forward this page to a friend Resize Print kalender-ikon Bookmark and Share

Niels Bohr Institute > Calendar > 2010 > Numerical studies on t...

Numerical studies on the Heisenberg Antiferromagnet on a Square Lattice

The quantum mechanical Heisenberg antiferromagnet on the square lattice has been investigated by exact diagonalization studies. The results are compared to both numerical and experimental results from the literature with special attention to neutron scattering data for CFTD obtained by Christensen et al. The analysis concentrates on a experimentally observed anomaly in both energy and intensity at the point (π, 0) in the two dimensional Brillouin zone. The results of exact diagonalization were found to model neutron scattering data and further suggested a possible explanation of the experimentally observed intensity anomaly.

Master thesis defense by Torsten Tranum Rømer