| Issue |
EPL
Volume 81, Number 5, March 2008
|
|
|---|---|---|
| Article Number | 57004 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/81/57004 | |
| Published online | 04 February 2008 | |
Multiferroicity due to nonstoichiometry in the chain cuprate LiVCuO4
1
Ural State University - 620083 Ekaterinburg, Russia
2
Leibniz Institut für Festkörper- und Werkstoffforschung Dresden - D-01171, Dresden, Germany
Received:
6
August
2007
Accepted:
1
January
2008
The recently observed multiferroic behavior in the 
chain cuprate LiVCuO4 (≡ LiCuVO4) with edge-shared 
plaquettes and
helical spin ordering does not agree with the existing theories such as a spin-current scenario. We argue that the effect can be consistently
explained, if the exchange-induced electric polarization on the out-of-chain Cu2+ centers substituting for Li ions in LiVCuO4
is taken into account. These substituent centers are proved to be an effective probe of the spin incommensurability and the magnetic-field effects.
PACS: 74.72.-h – Cuprate superconductors (high-Tc and insulating parent compounds) / 75.10.Pq – Spin chain models / 77.80.-e – Ferroelectricity and antiferroelectricity
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.