Artificial magnetic honeycomb lattices are expected to exhibit a broad and tunable range of novel magnetic phenomena that would be difficult to achieve in natural materials, such as long-range spin ice, entropy-driven magnetic charge-ordered state and spin-order due to the spin chirality. Eventually, the spin correlation is expected to develop into a unique spin solid state density ground state, manifested by the distribution of the pairs of vortex states of opposite chirality. Here we report the creation of a new artificial permalloy honeycomb lattice of ultra-small connecting bonds, with a typical size of ≃ 12 nm. Detail magnetic and neutron scattering measurements on the newly fabricated honeycomb lattice demonstrate the evolution of magnetic correlation as a function of temperature. At low enough temperature, neutron scattering measurements and micromagnetic simulation suggest the development of loop state of vortex configuration in this system.
@article{arxiv.1802.06631,
title = {Temperature Dependent Magnetism in Artificial Honeycomb Lattice of Connected Elements},
author = {B. Summers and L. Debeer-Schmitt and A. Dahal and A. Glavic and P. Kampschroeder and J. Gunasekera and D. K. Singh},
journal= {arXiv preprint arXiv:1802.06631},
year = {2018}
}