EuTiO 3 magnetic structure studied by neutron powder diffraction and resonant x-ray scattering

Valerio Scagnoli, Mattia Allieta, Helen Walker, Marco Scavini, Takuro Katsufuji, Leyre Sagarna, Oksana Zaharko, Claudio Mazzoli

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We combine neutron powder diffraction and x-ray single-crystal magnetic diffraction at the Eu L 2 edge to scrutinize the magnetic motif of the Eu ions in magnetoelectric EuTiO 3. Our measurements are consistent with an antiferromagnetic G-type pattern with the Eu magnetic moments ordering along the a,b-plane diagonal. Recent reports of a novel transition at 2.75 K with a flop of magnetic moments upon poling the sample in an electric field cannot be confirmed for a nonpoled sample. Our neutron diffraction data do not show any significant change of the structure below the Néel temperature. Magnetoelastic coupling, if present, is therefore expected to be negligible.

Original languageEnglish
Article number094432
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume86
Issue number9
DOIs
Publication statusPublished - 2012 Sep 26

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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