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Neutron diffraction study on single-crystalline UAu2Si2

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Title: Neutron diffraction study on single-crystalline UAu2Si2
Authors: Tabata, Chihiro Browse this author
Klicpera, Milan Browse this author
Ouladdiaf, Bachir Browse this author
Saito, Hiraku Browse this author
Valiska, Michal Browse this author
Uhlirova, Klara Browse this author
Miura, Naoyuki Browse this author
Sechovsky, Vladimir Browse this author
Amitsuka, Hiroshi Browse this author →KAKEN DB
Issue Date: 29-Dec-2017
Publisher: American Physical Society (APS)
Journal Title: Physical Review B
Volume: 96
Issue: 21
Start Page: 214442
Publisher DOI: 10.1103/PhysRevB.96.214442
Abstract: The magnetic structure of tetragonal UAu2Si2 was investigated by single-crystal neutron-diffraction experiments. Below T-N= 20 K it orders antiferromagnetically with a propagation vector of k = (2/3,0,0) and magnetic moments of uranium ions pointing along the tetragonal c axis. Weak signs of the presence of a ferromagnetic component of magnetic moment were traced out. Taking into account a group theory calculation and experimental results of magnetization and Si-29 nuclear magnetic resonance, the magnetic structure is determined to be a squared-up antiferromagnetic structure, with a stacking sequence (+ + -) of the ferromagnetic ac-plane sheets along the a axis. This result highlights similar magnetic correlations in UAu2Si2 and isostructural URu2Si2.
Rights: ©2017 American Physical Society
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 網塚 浩

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