The 1D spin-1/2 AF-Heisenberg model in a staggered field*
Physics Department, University of Wuppertal, 42097 Wuppertal,
Corresponding author: a firstname.lastname@example.org
Accepted: 17 April 1998
Published online: 15 October 1998
We investigate the scaling properties of the excitation energies and transition amplitudes of the one-dimensional spin-1/2 antiferromagnetic Heisenberg model exposed to an external perturbation. Two types of perturbations are discussed in detail: a staggered field and a dimerized field.
PACS: 75.10.-b – General theory and models of magnetic ordering
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998