We report on the magnetic structure and ordering of hexagonal LuFeO3 films grown by molecular-beam epitaxy (MBE) on YSZ (111) and Al2O3 (0001) substrates. Using a set of complementary probes including neutron diffraction, we find that the system magnetically orders into a ferromagnetically-canted antiferromagnetic state via a single transition between 138-155 K, while a paraelectric to ferroelectric transition occurs above 1000 K. The symmetry of the magnetic structure in the ferroelectric state implies that this material is a strong candidate for linear magnetoelectric coupling and control of the ferromagnetic moment directly by an electric field.
@article{arxiv.1411.1694,
title = {Magnetic Structure and Ordering of Multiferroic Hexagonal LuFeO3},
author = {Steven M. Disseler and Julie A. Borchers and Charles M. Brooks and Julia A. Mundy and Jarrett A. Moyer and D. A. Hillsberry and E. L. Thies and D. A. Tenne and John Heron and James D. Clarkson and Gregory M. Stiehl and Peter Schiffer and David A. Muller and Darrell G. Schlom and William D. Ratcliff},
journal= {arXiv preprint arXiv:1411.1694},
year = {2015}
}