Enhancing magnetoimpedance response by anisotropic surface-charge accumulation

•Surface-charge engineering via near-field electrospinning enhances Magnetoimpedance (MI) response.•Interface alignment of fibers influences the ferroelectric/ferromagnetic interaction, impacting MI response.•The anisotropic TiO2/PVA/CTAB composite fibers generate single-peak MI patterns in Co-based...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 593; p. 171838
Main Authors Zare, Mohammad, Jamilpanah, Loghman, Sadeghi, Ali, Ghanaatshoar, Majid, Mohseni, Majid
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2024
Subjects
Charge accumulation
Ferroelectric/ferromagnetic (FE/FM) interface
Fiber alignment
Magnetoelectric coupling
Magnetoimpedance (MI)
Near-field electrospinning (NFES)
Ferroelectric/ferromagnetic (FE/FM) interface
Fiber alignment
Magnetoimpedance (MI)
Magnetoelectric coupling
Near-field electrospinning (NFES)
Charge accumulation
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Summary:•Surface-charge engineering via near-field electrospinning enhances Magnetoimpedance (MI) response.•Interface alignment of fibers influences the ferroelectric/ferromagnetic interaction, impacting MI response.•The anisotropic TiO2/PVA/CTAB composite fibers generate single-peak MI patterns in Co-based ribbons.•NFES-produced surface charges underpin a potential avenue for magnetic material modification in flexible magnetoelectric devices. Magnetoimpedance (MI) elements show potential application in detection devices as well as advanced electronic components such as neuro-morphing computing and magneto-ionics. We demonstrate surface-charge accumulation via the transformative impact of near-field electrospinning on MI response of Co-based ribbons via longitudinal or transverse formation of aligned TiO2/PVA/CTAB composite fibers. MI represents sensitivity changes against anisotropic charge accumulation designed at the surface via longitudinally or transversely grown fibers. Notably, MI for the longitudinal electrospun exhibits a unique single-peak pattern, in contrast to the conventional dual-peak behavior. This variation is attributed to the meticulous alignment of fibers along the length and width of the ribbons, triggering a dynamic interplay at the crucial ferroelectric/ferromagnetic interface. Our finding demonstrates MI response control through interacting with anisotropic-order of surface-charge mediated by composite fibers.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2024.171838