Exchange interactions and frustrated magnetism in single-side hydrogenated and fluorinated graphene
Mesoscale and Nanoscale Physics
2014-06-03 v1 Materials Science
Strongly Correlated Electrons
Abstract
Magnetism in single-side hydrogenated (CH) and fluorinated (CF) graphene is analyzed in terms of the Heisenberg model with parameters determined from first principles. We predict a frustrated ground state for both systems, which means the instability of collinear spin structures and sheds light on the absence of a conventional magnetic ordering in defective graphene demonstrated in recent experiments. Moreover, our findings suggest a highly correlated magnetic behavior at low temperatures offering the possibility of a spin-liquid state.
Keywords
Cite
@article{arxiv.1306.5190,
title = {Exchange interactions and frustrated magnetism in single-side hydrogenated and fluorinated graphene},
author = {A. N. Rudenko and F. J. Keil and M. I. Katsnelson and A. I. Lichtenstein},
journal= {arXiv preprint arXiv:1306.5190},
year = {2014}
}
Comments
5 pages, 5 figures