Accession Number:

AD1071833

Title:

Self-Assembled Multiferroic Nanostructures and Studies on Magnetoelectric Interactions

Descriptive Note:

Technical Report,15 Sep 2012,14 Sep 2016

Corporate Author:

OAKLAND UNIV ROCHESTER MI ROCHESTER United States

Personal Author(s):

Report Date:

2018-10-27

Pagination or Media Count:

79.0

Abstract:

Ferromagnetic ferroelectric composites show strong magneto-electric ME coupling at room temperature that is mediated by mechanical forces. The focus of the proposed effort was on ME interactions in core-shell nanoparticles and nanowires of ferrite-piezoelectrics. The large surface area-to-volume ratio for the nanocomposites is expected to lead to a much stronger ME interactions compared to bulk materials. We modeled ME interactions in nanobilayers, nanopillars and nanotubes comprising a ferroelectric phase and a ferromagnetic phase. The model for low frequency ME coupling predicted a substantial reduction in ME coefficients in nanobilayers on a substrate due to substrate clamping, but the clamping effects can be substantially reduced in core-shell particles and coaxial wires. The important inferences from the models were the prediction of strong ME coupling at low-frequencies and at resonance modes in nanocomposites and the potential for novel devices based on the phenomena for high frequency electronics.

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE