Motivated by recent discovery of canted ferromagnetism in Tsai-type approximants Au-Si-RE (RE = Tb, Dy, Ho), we propose a phenomenological magnetic model reproducing their magnetic structure and thermodynamic quantities. In the model, cubic symmetry (m3ˉ) of the approximately-regular icosahedra plays a key role in the peculiar magnetic structure determined by a neutron diffraction experiment. Our magnetic model does not only explain magnetic behaviors in the quasicrystal approximants, but also provides a good starting point for the possibility of coexistence between magnetic long-range order and aperiodicity in quasicrystals.
@article{arxiv.1601.05905,
title = {Phenomenological Magnetic Model in Tsai-Type Approximants},
author = {Takanori Sugimoto and Takami Tohyama and Takanobu Hiroto and Ryuji Tamura},
journal= {arXiv preprint arXiv:1601.05905},
year = {2016}
}