| Issue |
EPJ Web of Conferences
Volume 40, 2013
JEMS 2012 – Joint European Magnetic Symposia
|
|
|---|---|---|
| Article Number | 15008 | |
| Number of page(s) | 4 | |
| Section | Perovskites and multiferroics | |
| DOI | https://doi.org/10.1051/epjconf/20134015008 | |
| Published online | 14 January 2013 | |
https://doi.org/10.1051/epjconf/20134015008
Ferroelectricity and lattice distortion associated with spin orderings in a multiferroic delafossite AgFeO2
1
National Institute for Materials Science, Sengen
1-2-1, Tsukuba, Ibaraki
305-0047,
Japan
2
ISIS facility, STFC Rutherford Appleton Laboratory,
Chilton, Didcot, Oxfordshire, OX11 0QX, United Kingdom
3
Clarendon Laboratory, Department of Physics, University
of Oxford, Parks
Road, Oxford
OX1 3PU,
United Kingdom
a e-mail: terada.noriki@nims.go.jp
Spin-lattice coupling and ferroelectric polarization associated with the magnetic ordering in a geometrically frustrated delafossite AgFeO2 have been studied by high resolution neutron powder diffraction and dielectric measurements. The cycloidal magnetic ground state found in this material and the character of the lattice distortions are unprecedented in the family of the delafossite compounds, implying a peculiar mechanism lifting the geometrical frustration.
© Owned by the authors, published by EDP Sciences, 2013
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