Name of the Journal:
APS March Meeting Abstracts
Proceedings, Conference, Subtitle or Series:
Proc. Int. Conf. on Physical Phenomena at High Magnetic Fields-III
Date of Pub:
March 1998
Year of Publication:
1998
Abstract:
We present 1/N Schwinger boson and quantum Monte Carlo calculations of the magnetization and NMR relaxation rate for the two-dimensional ferromagnetic Heisenberg model representing a quantum Hall system at filling factor ν=1. Comparing the analytic and numerical calculations, we find that the SU(N) version of Schwinger boson theory gives accurate results for the magnetization at low temperatures, whereas the O(N) model works well at higher temperatures.
arXiv.org Number: