Neutron diffraction study on single-crystalline UAu2Si2

Chihiro Tabata, Milan Klicpera, Bachir Ouladdiaf, Hiraku Saito, Michal Vališka, Klára Uhlířová, Naoyuki Miura, Vladimír Sechovský, and Hiroshi Amitsuka
Phys. Rev. B 96, 214442 – Published 29 December 2017

Abstract

The magnetic structure of tetragonal UAu2Si2 was investigated by single-crystal neutron-diffraction experiments. Below TN= 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 Si29 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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 6 October 2017
  • Revised 9 December 2017

DOI:https://doi.org/10.1103/PhysRevB.96.214442

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Chihiro Tabata1,*, Milan Klicpera2,3, Bachir Ouladdiaf2, Hiraku Saito4, Michal Vališka3, Klára Uhlířová3, Naoyuki Miura4, Vladimír Sechovský3, and Hiroshi Amitsuka4

  • 1Institute of Materials Structure Science, High Energy Accelerator Organization, Tsukuba 305-0801, Japan
  • 2Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
  • 3Charles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 121 16 Prague 2, Czech Republic
  • 4Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan

  • *ctabata@post.kek.jp

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 96, Iss. 21 — 1 December 2017

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×