Spin-Wave Instabilities and Non-Collinear Magnetic Phases of a Geometrically-Frustrated Triangular-Lattice Antiferromagnet
Strongly Correlated Electrons
2015-05-13 v1
Abstract
This paper examines the relation between the spin-wave instabilities of collinear magnetic phases and the resulting non-collinear phases for a geometrically-frustrated triangular-lattice antiferromagnet in the high spin limit. Using a combination of phenomenological and Monte-Carlo techniques, we demonstrate that the instability wave-vector with the strongest intensity in the collinear phase determines the wave-vector of a cycloid or the dominant elastic peak of a more complex non-collinear phase. Our results are related to the observed multi-ferroic phase of Al-doped CuFeO.
Keywords
Cite
@article{arxiv.0901.2336,
title = {Spin-Wave Instabilities and Non-Collinear Magnetic Phases of a Geometrically-Frustrated Triangular-Lattice Antiferromagnet},
author = {J. T. Haraldsen and M. Swanson and G. Alvarez and R. S. Fishman},
journal= {arXiv preprint arXiv:0901.2336},
year = {2015}
}
Comments
4 Pages, 4 Figures, Submitted to Phys. Rev. Lett