Nonfrustrated magnetoelectric with incommensurate magnetic order in magnetic field

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dc.creatorSyromyatnikov, A. V.
dc.date2007-04-27
dc.date.accessioned2026-07-07T08:37:13Z
dc.date.available2026-07-07T08:37:13Z
dc.descriptionWe discuss a model nonfrustrated magnetoelectric in which strong enough magnetoelectric coupling produces incommensurate magnetic order leading to ferroelectricity. Properties of the magnetoelectric in magnetic field directed perpendicular to wave vector describing the spin helix are considered in detail. Analysis of classical energy shows that in contrast to naive expectation the onset of ferroelectricity takes place at a field $H_{c1}$ that is lower than the saturation field $H_{c2}$. One has $H_{c1}=H_{c2}$ at strong enough magnetoelectric coupling. We show that at H=0 the ferroelectricity appears at $T=T_{FE}<T_N$. Qualitative discussion of phase diagram in $H-T$ plane is presented within mean field approach.
dc.description12 pages, 3 figures, accepted in JETP
dc.identifierhttps://arxiv.org/abs/0704.3660
dc.identifierhttp://arxiv.org/abs/0704.3660
dc.identifierJETP 105, 587 (2007)
dc.identifierdoi:10.1134/S1063776107090154
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140322
dc.subjectStrongly Correlated Electrons
dc.titleNonfrustrated magnetoelectric with incommensurate magnetic order in magnetic field
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