English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Ferromagnetic-ferroelectric nanocomposites are of interest for realizingstrong strain mediated coupling between electric and magnetic subsystems due tohigh surface area-to-volume ratio. This report is on the synthesis of nickelferrite (NFO) -barium titanate (BTO) core-shell nano-fibers, magnetic fieldassisted assembly into superstructures, and studies on magneto-electric (ME)interactions. Electrospinning techniques were used to prepare coaxial fibers of0.5-1.5 micron in diameter. The core-shell structure of annealed fibers wasconfirmed by electron microscopy and scanning probe microscopy. The fibers wereassembled into discs and films in a uniform magnetic field or a field gradient.Studies on ME coupling in the assembled films and discs were done by magneticfield H induced polarization, magneto-dielectric effects at low frequencies andat 16-24 GHz, and low frequency ME voltage coefficients (MEVC). We measured 2~2-7% change in remnant polarization and in the permittivity for H = 7 kOe, anda MEVC of 0.4 mV/cm Oe at 30 Hz. A model has been developed for low-frequencyME effects in an assembly of fibers and takes into account dipole-dipoleinteractions between the fibers and fiber discontinuity. Theoretical estimatesfor the low-frequency MEVC have been compared with the data. These resultsindicate strong ME coupling in superstructures of the core-shell fibers.

Multiferroic Core-Shell Nanofibers, Assembly in a Magnetic field and Studies on MagnetoElectric Interactions