Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1997-05-13
Phys.Rev.B56:6795-6804,1997
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
10 pages
Scientific paper
10.1103/PhysRevB.56.6795
We report on a study of the classical field theory description of charged skyrmions in quantum Hall ferromagnets. The appropriate field theory is a non-linear $\sigma$ model generalized to include Coulomb and Zeeman interaction terms. We have tested the range of validity of the classical field theory by comparing with microscopic descriptions of the single skyrmion state based on the Hartree-Fock approximation, exact diagonalization calculations, and many-body trial wavefunctions. We find that the field theory description is accurate for skyrmions with moderate spin quantum numbers ($\gtrsim 10$) although, as expected, it fails qualitatively for small spin quantum numbers.
Abolfath M.
Fertig Herbert A.
Girvin Steven M.
MacDonald Allan. H.
Palacios Javier
No associations
LandOfFree
A critical comparison of classical field theory and microscopic wavefunctions for skyrmions in quantum Hall ferromagnets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A critical comparison of classical field theory and microscopic wavefunctions for skyrmions in quantum Hall ferromagnets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A critical comparison of classical field theory and microscopic wavefunctions for skyrmions in quantum Hall ferromagnets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-266690