2022/04/02 by Kazuhiro Nawa, Nawa, Kazuhiro, Maxim Avdeev +15 · 1 citation
Materials Science · Mathematics · #Analytic and geometric function theory #FOS: Physical sciences #Quasicrystal Structures and Properties #Strongly Correlated Electrons (cond-mat.str-el) #X-ray Diffraction in Crystallography
paper · pdf · doi:10.48550/arxiv.2204.00868
openalex publication_date 2022/04/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Magnetic properties of the quasicrystal approximant Au65Ga21Tb14 were investigated by the magnetization and the neutron diffraction experiments. The temperature dependences of the magnetic susceptibility and the magnetization curve indicate dominant ferromagnetic interactions, while the whirling antiferromagnetic order was found from the neutron diffraction experiments. In the antiferromagnetic phase, the magnetic moments are aligned almost perpendicular to a pseudo five-fold symmetry axis, which should correspond to the easy-axis direction of a Tb atom. The magnetic properties similar to those of Au72Al14Tb14 in spite of the difference in the electron-per-atom ratio suggest the robustness of the easy-axis anisotropy against the chemical substitution of the nonmagnetic atoms.