Effect of different magnetic phases on magnetoelectric coupling properties of nanostructures of (K0.5Na0.5)NbO3/(CoFe2O4, NiFe2O4 OR BaFe12O19) obtained by physical deposition

• Grant number: 23/07654-8
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: July 01, 2023
• End date: August 31, 2024
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: José Antonio Eiras
• Grantee: Rodrigo Ambrosio Rodrigues de Carvalho
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 17/13769-1 - Multiferroic and ferroelectric materials for energy converters: synthesis, properties, phenomenology and applications, AP.TEM

Abstract

Magnetoelectric coupling in nanostructured systems has aroused interest since it is possible to integrate properties of high technological applicability, such as ferroelectricity and ferromagnetism, and also the possibility of manipulating electrical and/or magnetic orders with the application of external magnetic/electric fields, allowing the development of electronic devices. high-performance models that offer greater multifunctionality in a smaller volume. This project proposes a systematic investigation of the nature of the coupling between states of order ferroelectric and magnetic, that is, the magnetoelectric coupling in nanostructured materials, obtained by physical deposition. Priority will be given to composite systems of (K0.5Na0.5)NbO3/ (CoFe2O4, NiFe2O4 or BaFe12O19) in different thicknesses/distributions between the layers. Through this project, relevant contributions are expected in fundamental areas of development of new materials such as: new materials and/or methods of processing nanostructured systems two-dimensional; investigation of the nature of magnetoelectric coupling at the nanoscale; and, structure/microstructure-properties correlation for the development of prototypes of new sensors and actuators. (AU)