A Scaling Theory for ac Magnetic Response in Kagome Ice
Strongly Correlated Electrons
2013-08-12 v1 Statistical Mechanics
Abstract
A theory for frequency-dependent magnetic susceptibility \chi(\omega) is developed for thermally activated magnetic monopoles in kagome ice. By mapping this system to a two-dimensional (2D) Coulomb gas and then to a sine-Gordon model, we have shown that the susceptibility has a scaling form \chi(\omega)/\chi(0)={\cal F}(\omega/\omega_1), where the characteristic \omega_1 is related to a charge correlation length between diffusively moving monopoles, and to the sine-Gordon principal breather. The dynamical scaling is universal among superfluid and superconducting films, and 2D XY magnets above Kosterlitz-Thouless transitions.
Keywords
Cite
@article{arxiv.1308.2049,
title = {A Scaling Theory for ac Magnetic Response in Kagome Ice},
author = {Hiromi Otsuka and Hiroshi Takatsu and Kazuki Goto and Hiroaki Kadowaki},
journal= {arXiv preprint arXiv:1308.2049},
year = {2013}
}
Comments
6 pages, 2 figures