https://doi.org/10.1007/s100510050470
The 1D spin-1/2 AF-Heisenberg model in a staggered field*
Physics Department, University of Wuppertal, 42097 Wuppertal,
Germany
Corresponding author: a karbach@wptsb.uni-wuppertal.de
Received:
27
February
1998
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