Effect of interfacial and edge roughness on magnetoelectric control of Co/Ni microdisks on PMN-PT(011).

ABSTRACT: Uniform magnetic behavior within arrays of magnetoelectric heterostructures is important for the development of reliable strain-mediated microdevices. Multiple mechanisms may contribute to observed nonuniform magnetization reversal including surface roughness, non-uniform strain, and fabrication induced imperfections. Here, Co/Ni microdisks of 7 µm diameter were produced on both [Pb(Mg_1/3Nb_2/3)O₃]_1-x-[PbTiO₃]_x with x = 0.3 nominal composition (PMN-30PT) (011) and Si substrates, and the out-of-plane magnetization reversal was characterized using magneto-optical Kerr effect (MOKE). Coercivity variation across the microdisks within the arrays was observed on both the PMN-30PT and Si specimens with zero electric field applied. C

SUBMITTER: Hsiao Y 

PROVIDER: S-EPMC8913801 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature