• Editors' Suggestion

A-cation control of magnetoelectric quadrupole order in A(TiO)Cu4(PO4)4(A=Ba,Sr,and Pb)

K. Kimura, M. Toyoda, P. Babkevich, K. Yamauchi, M. Sera, V. Nassif, H. M. Rønnow, and T. Kimura
Phys. Rev. B 97, 134418 – Published 18 April 2018
PDFHTMLExport Citation

Abstract

Ferroic magnetic quadrupole order exhibiting macroscopic magnetoelectric activity is discovered in the novel compound A(TiO)Cu4(PO4)4 with A = Pb, which is in contrast with antiferroic quadrupole order observed in the isostructural compounds with A = Ba and Sr. Unlike the famous lone-pair stereochemical activity which often triggers ferroelectricity as in PbTiO3, the Pb2+ cation in Pb(TiO)Cu4(PO4)4 is stereochemically inactive but dramatically alters specific magnetic interactions and consequently switches the quadrupole order from antiferroic to ferroic. Our first-principles calculations uncover a positive correlation between the degree of A-O bond covalency and a stability of the ferroic quadrupole order.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 3 April 2017
  • Revised 10 December 2017

DOI:https://doi.org/10.1103/PhysRevB.97.134418

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

K. Kimura1,*, M. Toyoda2, P. Babkevich3, K. Yamauchi4, M. Sera5, V. Nassif6,7, H. M. Rønnow3, and T. Kimura1

  • 1Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
  • 2Department of Physics, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
  • 3Laboratory for Quantum Magnetism, Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
  • 4ISIR-SANKEN, Osaka University, Ibaraki, Osaka 567-0047, Japan
  • 5Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
  • 6Univ. Grenoble Alpes, Inst NEEL, F-38000 Grenoble, France
  • 7CNRS, Inst NEEL, F-38000 Grenoble, France

  • *kentakimura@edu.k.u-tokyo.ac.jp

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 97, Iss. 13 — 1 April 2018

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
×