Strain-Engineered Multiferroicity inPnmaNaMnF3Fluoroperovskite

Direct Magnetization-Polarization Coupling in BaCuF4

“…In order to estimate how the polarization of BaCuF 4 fits with respect to the members of the BaM F 4 family, in Table I we compare the trend of the polarization's amplitude as a function of the M 2+ ionic radii [34]. We observe that the polarization follows the trend of the ionic radii size, which is expected from geometricallydriven polar displacements [37], also concluded from their close-to-nominal Born effective charges (see Supplementary Material [28]) similarly as theoretically predicted [38] and later experimentally demonstrated in the multiferroic NaMnF 3 perovskite fluoride [39]. Interestingly, it can be also noted that BaMnF 4 and BaFeF 4 , which lack of experimentally proved polarization reversal [11], are those with the largest M 2+ ionic radii.…”

Superlattice-like structure and enhanced ferroelectric properties of intergrowth Aurivillius oxides

“…Multiferroic materials exhibiting ferroelectric (FE) and ferromagnetic (FM) properties simultaneously have drawn numerous attentions as a new type of very promising materials which could be widely applied as quantum sensors and storage mediums. [1][2][3][4][5][6][7] Among them, Bi-containing Aurivillius compounds with the general formula of (Bi 2 O 2 ) 2+ (A nÀ1 B n O 3n+1 ) 2À are one of the most important branches. [8][9][10][11][12] In these Aurivillius compounds, perovskite-like layers (A nÀ1 B n O 3n+1 ) 2À are sandwiched by uorite-like layers (Bi 2 O 2 ) 2+ , and it's found that the layer number, n, has a great impact on their ferroelectric (FE) and ferromagnetic (FM) properties.…”

Structure Evolution and Multiferroic Properties in Cobalt Doped Bi4NdTi3Fe1-xCoxO15-Bi3NdTi2Fe1-xCoxO12-δ Intergrowth Aurivillius Compounds

“…The search for multiferroic materials combining electric and magnetic properties in a single phase has attracted a lot of attention in the perspective of future spintronic or magnetoelectronic devices123. Unfortunately, only a handful of single phase multiferroics have been discovered so far, and most of them are not suitable for practical applications at present, either because the room temperature polarization/magnetization is too small or their mutual coupling is too weak456.…”

“…Unfortunately, only a handful of single phase multiferroics have been discovered so far, and most of them are not suitable for practical applications at present, either because the room temperature polarization/magnetization is too small or their mutual coupling is too weak456. Therefore people are still hunting for new multiferroic systems27. One possible route for designing single-phase multiferroic materials is to start from a series of well-established ferroelectrics and create additional functionality by incorporating magnetic ions into these systems189.…”