Mangetoelectric properties of multiferroic materials using magneto-Raman spectroscopy

• Grant number: 10/05660-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2010
• End date: September 30, 2012
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Eduardo Granado Monteiro da Silva
• Grantee: Paulo Freitas Gomes
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 06/60440-0 - Study of strongly correlated systems in extreme conditions, AP.TEM

Abstract

In this project, the study of crystalline materials that present magnetoelectric multiferroic properties is proposed. This property is characterised by the coupling of ferroelectricity with (anti)ferromagnetism. We intend to study the origin of this coupling using Raman spectroscopy with external magnetic field in a series of lithium orthophosphates samples. These materials show ferroelectricity under an external applied magnetic field, leading to a significant magnetoelectric coupling.