Growth mode and matrix effects on the magneto-optical activity of ultrathin films

The magneto-optical activity of Fe nanoparticulate systems is studied in this work as a function of the matrix that surrounds the particles and the Fe concentration in the effective layer. It is shown that the magneto-optical activity is not linear or proportional to the amount of Fe even at low cov...

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Detalles Bibliográficos
Autores: Menéndez, José Luis, Armelles Reig, Gaspar, Cebollada, Alfonso, Quintana Rodríguez, Carmen, Ravelosona, D., Chappert, C., Peiró, F., Cornet, Albert
Tipo de recurso: artículo
Fecha de publicación:2002
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/25306
Acceso en línea:http://hdl.handle.net/10261/25306
Access Level:acceso abierto
Palabra clave:Iron
Magnetic thin films
Magneto-optical effects
Nanostructured materials
Descripción
Sumario:The magneto-optical activity of Fe nanoparticulate systems is studied in this work as a function of the matrix that surrounds the particles and the Fe concentration in the effective layer. It is shown that the magneto-optical activity is not linear or proportional to the amount of Fe even at low coverages when the matrix surrounding the particles is an insulator. As a conclusion, it is also demonstrated that the magneto-optical response of a magnetic ultrathin film system strongly depends on its growth mode, with modifications of up to 100% in its magneto-optical activity.