Wilkins, SB;
Forrest, TR;
Beale, TAW;
Bland, SR;
Walker, HC;
Mannix, D;
Yakhou, F;
... McMorrow, DF; + view all
(2009)
Nature of the Magnetic Order and Origin of Induced Ferroelectricity in TbMnO3.
PHYS REV LETT
, 103
(20)
, Article 207602. 10.1103/PhysRevLett.103.207602.
![[thumbnail of 126599.pdf]](https://discovery-pp.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
126599.pdf Download (576kB) |
Abstract
The magnetic structures which endow TbMnO3 with its multiferroic properties have been reassessed on the basis of a comprehensive soft x-ray resonant scattering (XRS) study. The selectivity of XRS facilitated separation of the various contributions (Mn L-2 edge, Mn 3d moments; Tb M-4 edge, Tb 4f moments), while its variation with azimuth provided information on the moment direction of distinct Fourier components. When the data are combined with a detailed group theory analysis, a new picture emerges of the ferroelectric transition at 28 K. Instead of being driven by the transition from a collinear to a noncollinear magnetic structure, as has previously been supposed, it is shown to occur between two noncollinear structures.
| Type: | Article |
|---|---|
| Title: | Nature of the Magnetic Order and Origin of Induced Ferroelectricity in TbMnO3 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.103.207602 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.103.207602 |
| Language: | English |
| Additional information: | © 2009 The American Physical Society |
| Keywords: | EXCHANGE SCATTERING, POLARIZATION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/126599 |
Archive Staff Only
 |
View Item |
