Send to

Choose Destination
Phys Rev Lett. 2008 Nov 28;101(22):227601. Epub 2008 Nov 26.

Charge order in LuFe2O4: antiferroelectric ground state and coupling to magnetism.

Author information

Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.


X-ray scattering by multiferroic LuFe2O4 is reported. Below 320 K, superstructure reflections indicate an incommensurate charge order with propagation close to (1/3 1/3 3/2). The corresponding charge configuration, also found by electronic structure calculations as most stable, contains polar Fe/O double layers with antiferroelectric stacking. Diffuse scattering at 360 K, with (1/3 1/3 0) propagation, indicates ferroelectric short-range correlations between neighboring double layers. The temperature dependence of the incommensuration indicates that charge order and magnetism are coupled.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center