Quantum fluctuation effects on the ordered Moments in a two dimensional frustrated ferrimagnet
Strongly Correlated Electrons
2021-01-20 v1 Materials Science
Abstract
We propose a novel two-dimensional (2D)frustrated quantum spin-1/2 anisotropic Heisenberg model with alternating ferromagnetic and antiferromagnetic magnetic chains along one direction and antiferromagnetic interactions along the other. The (mean-field) ground state is ferrimagnetic in certain range of the interaction space. Spin-wave theory analysis of the reduction of ordered moments at inequivalent spin sites and the instability of the spin waves suggest a quantum phase transition which has the characteristics of both the frustrated two-dimensional antiferromagnetic S=1/2 () model and 1D S=1, S=1/2 quantum ferrimagnetic model.
Keywords
Cite
@article{arxiv.2101.07300,
title = {Quantum fluctuation effects on the ordered Moments in a two dimensional frustrated ferrimagnet},
author = {Kingshuk Majumdar and Subhendra D. Mahanti},
journal= {arXiv preprint arXiv:2101.07300},
year = {2021}
}
Comments
9 pages, 6 figures