Magneto-optical investigation of PbEuTe

• Processo: 07/59463-9
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Data de Início da vigência: 24 de abril de 2008
• Data de Término da vigência: 23 de junho de 2008
• Área de conhecimento: Ciências Exatas e da Terra - Física - Física da Matéria Condensada
• Acordo de Cooperação: DAAD
• Pesquisador responsável: Andre Bohomoletz Henriques
• Beneficiário: Andre Bohomoletz Henriques
• Pesquisador Anfitrião: Dmitri Yakovlev
• Instituição Parceira no exterior: Technische Universität Dortmund (TU Dortmund), Alemanha
• Instituição Sede: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brasil
• Assunto(s): Calcogeneto Semicondutores Magnetismo

Resumo

Europium chalcogenides are important magnetic semiconductors that have a potential for applications in spintronic devices. They share the common property of having a large magnetic moment at the lattice sites occupied by europium, and their magneto-optical properties can be described by the same semi-empirical model, albeit with different parameters. Here we propose to investigate PbEuTe epitaxial layers, grown by molecular beam epitaxy, to gather new experimental evidence that will improve our understanding of the electronic processes in these systems. The experiments that will be performed include time-resolved Faraday rotation, time-resolved photoluminescence and second harmonic generation. The research aims at detecting and controlling the electronic and lattice magnetism by the use of light. (AU)