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

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

doi:10.1016/j.scriptamat.2018.09.003

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 journal › Article › peer-review

13 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 language	English
Pages (from-to)	33-36
Number of pages	4
Journal	Scripta Materialia
Volume	159
DOIs	https://doi.org/10.1016/j.scriptamat.2018.09.003
State	Published - 15 Jan 2019
Externally published	Yes

Keywords

BaTiO nanotubes
Electrochemical anodization
Magnetoelectric composites
Piezo force microscopy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2018.09.003

Cite this

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title = "Local probing of magnetoelectric coupling in BaTiO3-Ni 1–3 composites",

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.",

keywords = "BaTiO nanotubes, Electrochemical anodization, Magnetoelectric composites, Piezo force microscopy",

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AU - Vadla, Samba Siva

AU - Costanzo, Tommaso

AU - John, Subish

AU - Caruntu, Gabriel

AU - Roy, Somnath C.

PY - 2019/1/15

Y1 - 2019/1/15

N2 - 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.

AB - 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.

KW - BaTiO nanotubes

KW - Electrochemical anodization

KW - Magnetoelectric composites

KW - Piezo force microscopy

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