Bulk-like ferroelectricity and magnetoelectric response of low-temperature solution-processed BiFeO3–PbTiO3 films on Ni for metallic MEMS

Author:

Algueró Miguel1ORCID,Zia Layiq12ORCID,Jiménez Ricardo1ORCID,Amorín Harvey1ORCID,Bretos Iñigo1ORCID,Barreto Adriana1,Jaffari G. Hassnain2ORCID,Rodríguez-Castellón Enrique3ORCID,Ramos Pablo4ORCID,Calzada M. Lourdes1ORCID

Affiliation:

1. Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (ICMM-CSIC) 1 , Madrid, Spain

2. Department of Physics, Quaid-i-Azam University 2 , Islamabad, Pakistan

3. Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Málaga 3 , Málaga, Spain

4. Departamento de Electrónica, Universidad de Alcalá 4 , Alcalá de Henares, Spain

Abstract

Simple and cost-effective procedures for the direct integration of ferroelectric perovskite oxides into Ni structures are necessary to realize related multifunctional metallic microelectromechanical systems, such as dual-source energy harvesters. This is especially difficult in the case of lead-containing morphotropic phase boundary materials for high piezoelectric response because the two components are thermodynamically incompatible and the formation of NiOx or perovskite oxide reduction takes place depending on the processing conditions. We show here that low-temperature solution processing is an effective means to kinetically limit nickel oxidation, capable of providing BiFeO3–PbTiO3 films on Ni plates at only 500 °C. Bulk-like ferroelectric properties and a distinctive magnetoelectric response were attained. This perovskite system, not explored before on Ni, has a much larger switchable polarization than the widely studied Pb(Zr,Ti)O3, and it is shown here to present an excellent downscaling behavior of ferroelectric properties until the verge of the nanoscale.

Funder

Ministerio de Ciencia e Innovación

Publisher

AIP Publishing

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