Multiferroic and magnetoelectric nanocomposites for data processing

摘要: Recent progress in preparing and understanding composite magnetoelectrics is highlighted. Apart from optimized standard solutions novel methods of switching magnetism with electric fields vice versa focus on magnetoelectric (ME) data processing multiferroic nanocomposites deserve particular interest. First, we report the patented MERAM, which uses field control exchange bias a layered via an epitaxial Cr2O3 layer coupled to Pt/Co/Pt trilayer. It promises crucially reduce Joule energy losses RAM devices. Second, magnetic polarization by transverse CoFe2O4 nanopillars embedded vertically poled BaTiO3 thick film produces regular surface pattern rectangular local symmetry. Its possible use for discussed. Third, relaxor ferroelectric single-phase compound (BiFe0.9Co0.1O3)0.4–(Bi1/2K1/2TiO3)0.6 polar nanoregions emerging ferrimagnetic Bi(Fe,Co)O3 regions Bi1/2K1/2TiO3 component transform into clusters simultaneously enable congruent clusters. The magnetization couple record-high direct converse coupling coefficients, α ≈ 1.0 × 10−5 s m−1. These 'multiferroic' are promising applications storage or