Magnetic field control of charge structures in the magnetically disordered phase of the multiferroic LuFe$_2$O$_4$

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dc.creatorWen, Jinsheng
dc.creatorXu, Guangyong
dc.creatorGu, Genda
dc.creatorLaboratory, S. M. Shapiro Brookhaven National
dc.date2009-04-09
dc.date2009-04-10
dc.date.accessioned2026-07-07T13:02:00Z
dc.date.available2026-07-07T13:02:00Z
dc.descriptionUsing neutron diffraction, we have studied the magnetic field effect on charge structures in the charge-ordered multiferroic material LuFe$_2$O$_4$. An external magnetic field is able to change the magnitude and correlation lengths of the charge valence order even before the magnetic order sets in. This affects the dielectric and ferroelectric properties of the material and induces a giant magneto-electric effect. Our results suggest that the magneto-electric coupling in LuFe$_2$O$_4$ is likely due to magnetic field effect on local spins, in clear contrast to the case in most other known multiferroic systems where the bulk magnetic order is important.
dc.identifierhttps://arxiv.org/abs/0904.1561
dc.identifierhttp://arxiv.org/abs/0904.1561
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226338
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleMagnetic field control of charge structures in the magnetically disordered phase of the multiferroic LuFe$_2$O$_4$
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