Spin flop in one-dimensional quantum antiferromagnets

Abstract

The field-induced transition corresponding to the spin flop in the quantum antiferromagnetic chains in the presence of the Ising-like single-ion anisotropy D (<0) is studied by the finite-cluster analysis. It is found that for $S\ge \frac{3}{2}$ a first-order metamagnetic transition occurs even in one dimension for small negative D except for the Haldane phase, while there exist two second-order transitions and an incommensurate phase appears between them for intermediate D, as already found for S=1. We also discuss on some experiments of CsNiCl${}_3$ related with the present work.

5 pages, Revtex, with 4 eps figures

References in corpus (2)

• Magnetization process of the spin-1/2 XXZ models on square and cubic lattices
• Field induced transition of the S=1 antiferromagnetic chain with anisotropy

Cited by in corpus (2)

• Translational-Symmetry-Broken Magnetization Plateaux of the $S=3/2$ Anisotropic Antiferromagnetic Chain
• Translational Symmetry Broken Magnetization Plateau of the $S=2$ Antiferromagnetic Chain with Anisotropies