Numerical Study of Weak Ferromagnetism in 2D J_{1}-J_{2} Heisenberg Model with Dzyaloshinskii-Moriya Interaction

• Authors: A. Voigt , J. Richter
• Languages of publication: EN

Abstracts

EN

By means of exact diagonalization we consider the groundstate of the J_{1}-J_{2} spin 1/2 Heisenberg model with an anisotropic interaction term of Dzyaloshinskii-Moriya type. We find that a Dzyaloshinskii-Moriya interaction may create a weak ferromagnetic moment. The interplay between the quantum nature of the groundstate of the pure J_{1}-J_{2} model and the anisotropic Dzyaloshinskii-Moriya interaction favour energetically a well-defined direction of spin alignment creating anisotropic correlations.

Keywords

EN

75.30.Gw; 05.50.+q; 75.10.Jm

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 2
• Pages: 371-375

Dates

published

1997-02

Contributors

author

A. Voigt

• Institut für Theoretische Physik, Otto-von-Guericke-Universität, Postfach 4120, 39016 Magdeburg, Germany

author

J. Richter

• Institut für Theoretische Physik, Otto-von-Guericke-Universität, Postfach 4120, 39016 Magdeburg, Germany