• Open Access

Magnetism of the A-site ordered perovskites CaCu3Cr4O12 and LaCu3Cr4O12

Jun Sugiyama, Hiroshi Nozaki, Izumi Umegaki, Kazutoshi Miwa, Wataru Higemoto, Eduardo J. Ansaldo, Jess H. Brewer, Hiroya Sakurai, Masahiko Isobe, Hidenori Takagi, and Martin Månsson
Phys. Rev. B 97, 024416 – Published 18 January 2018

Abstract

The microscopic magnetic nature of the A-site ordered chromium perovskites CaCu3Cr4O12 and LaCu3Cr4O12 and their solid-solution system, Ca1xLaxCu3Cr4O12, with x=0.2, 0.4, and 0.8, has been studied with muon spin rotation and relaxation (μ+SR) measurements down to 2 K using a powder sample. For CaCu3Cr4O12, μ+SR revealed the formation of static antiferromagnetic (AF) order below 122 K (=TN), although magnetization measurements showed a very small change at TN. Analyses of the internal magnetic field Hint at the muon sites, predicted with first-principles calculations, suggested G-type AF order as a ground state. For LaCu3Cr4O12 with TN=225 K, μ+SR also supported the presence of a G-type AF ordered state, which was recently proposed based on neutron diffraction measurements. However, the ordered Cr moments were found to change the direction at around 10 K. For Ca1xLaxCu3Cr4O12, both TN and Hint at 2 K increase monotonically with x.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
7 More
  • Received 11 September 2017

DOI:https://doi.org/10.1103/PhysRevB.97.024416

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsAccelerators & Beams

Authors & Affiliations

Jun Sugiyama1,2,*, Hiroshi Nozaki1, Izumi Umegaki1, Kazutoshi Miwa1, Wataru Higemoto2, Eduardo J. Ansaldo3, Jess H. Brewer4,5, Hiroya Sakurai6, Masahiko Isobe7, Hidenori Takagi7, and Martin Månsson8

  • 1Toyota Central Research and Development Laboratories Inc., Nagakute, Aichi 480-1192, Japan
  • 2Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
  • 3Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E2
  • 4TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3
  • 5Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
  • 6National Institute for Materials Science, Namiki, Tsukuba, Ibaraki 305-0044, Japan
  • 7Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
  • 8Department of Materials Physics, KTH Royal Institute of Technology, SE-16440 Stockholm Kista, Sweden

  • *e0589@mosk.tytlabs.co.jp

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 97, Iss. 2 — 1 January 2018

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×