Detalhes do Documento

Study of the magnetic disaccommodation in La doped YIG

Autor(es): Torres, C. cv logo 1 ; Hernández-Gómez, P. cv logo 2 ; Francisco, C. de cv logo 3 ; Arias, A. González cv logo 4 ; Muñoz, J. M. cv logo 5 ; Alejos, O. cv logo 6 ; Perdigão, J. M. cv logo 7 ; Ferreira, A. R. cv logo 8

Data: 2005

Identificador Persistente: http://hdl.handle.net/10316/8160

Origem: Estudo Geral - Universidade de Coimbra


Descrição
The relaxation of the initial magnetic permeability of La doped yttrium iron garnet (YIG) samples with nominal composition Y3-xLaxFe5O12 (0< x <0.6) is analysed in this work. The results show a very different behaviour depending on the sintering atmosphere used for the fabrication of the samples. Concretely, for the samples sintered in air, it just have been detected the usual relaxation peak found in YIG at 130 K. However, a new relaxation peak appears around room temperature for the samples sintered in CO2 atmosphere when the La content is at least of 0.3. These results have been interpreted in terms of the formation of a secondary perovskite phase when the La solubility limit is reached. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) http://dx.doi.org/10.1002/pssc.200461716
Tipo de Documento Artigo
Idioma Inglês
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