Science and Nature

Two-dimensional ferroelectricity by assassinate


The invention of ferroelectricity marks its 100th anniversary this year (1), and this phenomenon continues to enhance our figuring out of many fields of physics and field topic science, as well to creating subfields by itself. All the ferroelectrics came all the device in which by had been miniature to these exhibiting a polar set team of the bulk crystal that helps two or extra topologically equal variants with diversified orientations of electrical polarization. On pages 1458 and 1462 of this speak, Yasuda et al. (2) and Vizner Stern et al. (3), respectively, present that ferroelectricity would be engineered by artificially stacking a nonpolar in bulk, two-dimensional (2D) field topic, boron nitride (BN). A relatively extinct van der Waals (vdW) coupling between the adjoining BN monolayers permits their parallel alignment in a metastable non-centrosymmetric coordination supporting 2D ferroelectricity with an out-of-airplane electrical polarization. These findings begin opportunities to assassinate 2D ferroelectrics out of guardian nonpolar compounds.

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