Vladimir Yurevich Galkin | Bardin Central Research Institute for Ferrous Metallurgy - Rússia

• Processo: 01/13999-9
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional
• Data de Início da vigência: 01 de abril de 2002
• Data de Término da vigência: 30 de setembro de 2002
• Área do conhecimento: Ciências Exatas e da Terra - Física - Física da Matéria Condensada
• Pesquisador responsável: Wilson Aires Ortiz
• Beneficiário: Wilson Aires Ortiz
• Pesquisador visitante: Vladimir Yurevich Galkin
• Instituição do Pesquisador Visitante: Bardin Central Research Institute for Ferrous Metallurgy, Rússia
• Instituição Sede: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brasil
• Assunto(s): Cromo Ligas de cromo
• Palavra(s)-Chave do Pesquisador: Cromo | Ligas De Cromo

Resumo

A new approach in studying magnetism of multilayers containing spacers with spin density wave (SDW) structure is suggested. Experimental studies of Cr spacers sandwiched between ferromagnetic (FM) layers are strongly complicated due to the presence of a FM background. Recent theoretical simulation of magnetic structure of Fe/Cr multilayers evidences the close origin of the SDW structure within Cr spacers and in the vicinity of magnetic impurities in bulk Cr alloys. Therefore we expect that some features of magnetism of Cr layers within Cr/Fe and Cr/Co systems can be simulated by the experimental study of bulk Cr alloys with Fe and Co. Transition from paramagnetic to local SDW phase, spin frustration and the bias effect in binary and ternary Cr alloys with Fe, Co, V, Mn, Si and Al will be studied by measuring magnetic and transport properties. (AU)