The magnetization process in the 2-dimensional J1-J2 model
Physics Department, University of Wuppertal, 42097 Wuppertal, Germany
Corresponding author: a firstname.lastname@example.org
Revised: 28 September 2001
Published online: 15 November 2001
We study the -dependence of the magnetization process in the J1-J2 model on a square lattice with frustrating couplings J2 along the diagonals. Perturbation expansions around and yield an adequate description of the magnetization curve in the antiferromagnetic and collinear antiferromagnetic phase, respectively. The transition from one phase to the other () leaves pronounced structures in the longitudinal and transverse structure factors at and .
PACS: 75.10.-b – General theory and models of magnetic ordering / 75.10.Jm – Quantized spin models
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001