Two-dimensional frustrated spin systems in high magnetic fields

Burkhard Schmidt; Nic Shannon; Peter Thalmeier

doi:10.1088/1742-6596/51/1/048

Two-dimensional frustrated spin systems in high magnetic fields

Strongly Correlated Electrons 2007-06-21 v1

Authors: Burkhard Schmidt , Nic Shannon , Peter Thalmeier

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We discuss our numerical results on the properties of the S = 1/2 frustrated J1-J2 Heisenberg model on a square lattice as a function of temperature and frustration angle phi = atan(J2/J1) in an applied magnetic field. We cover the full phase diagram of the model in the range -pi <= phi <= pi. The discussion includes the parameter dependence of the saturation field itself, and addresses the instabilities associated with it. We also discuss the magnetocaloric effect of the model and show how it can be used to uniquely determine the effective interaction constants of the compounds which were investigated experimentally.

Keywords

heisenberg antiferromagnet on lattices quantum spin chains ising model and frustrated magnetism

Cite

@article{arxiv.cond-mat/0609381,
  title  = {Two-dimensional frustrated spin systems in high magnetic fields},
  author = {Burkhard Schmidt and Nic Shannon and Peter Thalmeier},
  journal= {arXiv preprint arXiv:cond-mat/0609381},
  year   = {2007}
}

Comments

4 pages, 5 figures, proceedings of RHMF 2006

Related papers

View all related →