Local probing of magnetoelectric coupling in BaTiO3-Ni 1–3 composites

Samba Siva Vadla, Tommaso Costanzo, Subish John, Gabriel Caruntu, Somnath C. Roy

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We report the fabrication of BaTiO3-Ni magnetoelectric nanocomposites comprising of BaTiO3 nanotubes surrounded by Ni matrix. BaTiO3 nanotubes obtained from the hydrothermal transformation of TiO2 have both inner and outer surfaces, which facilitates greater magnetoelectric coupling with the surrounding Ni matrix. The magnetoelectric coupling was studied by measuring the piezoelectric behavior in the presence of an in-plane direct magnetic field. A higher magnetoelectric voltage coefficient of 110 mV/cm·Oe was obtained, because of better coupling between Ni and BaTiO3 through the walls of the nanotubes. Such nanocomposite developed directly on Ti substrate may lead to efficient fabrication of magnetoelectric devices.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalScripta Materialia
Volume159
DOIs
StatePublished - Jan 15 2019

Keywords

  • BaTiO nanotubes
  • Electrochemical anodization
  • Magnetoelectric composites
  • Piezo force microscopy

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