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Title: Whirling spin order in the quasicrystal approximant Au72Al14Tb14
Authors: Sato, TJ
Ishikawa, A
Sakurai, A
Hattori, M
Avdeev, M
Tamura, R
Keywords: Neutron diffraction
Phase transformations
Issue Date: 13-Aug-2019
Publisher: American Physical Society
Citation: Sato, T. J, Ishikawa, A., Sakurai, A., Hattori, M., Avdeev, M., & Tamura, R. (2019). Whirling spin order in the quasicrystal approximant Au72Al14Tb14. Physical Review B, 100(5), 054417. doi:10.1103/PhysRevB.100.054417
Abstract: A neutron powder diffraction experiment has been performed on the quasicrystal approximant Au72Al14Tb14, a body-centered-cubic crystal of icosahedral spin clusters. The long-range antiferromagnetic order was confirmed at the transition temperature TN=10.4 K. The magnetic structure consists of noncoplanar whirling spins on the icosahedral clusters, arranged in an antiferroic manner. A simple icosahedral spin-cluster model with uniaxial anisotropy accounts well the whirling spin order as well as the in-field metamagnetic transition, indicating that the icosahedral symmetry is essential. ©2019 American Physical Society
ISSN: 469-9969
Appears in Collections:Journal Articles

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