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Title: Study of the magnetic disaccommodation in La doped YIG
Authors: Torres, C. 
Hernández-Gómez, P. 
Francisco, C. de 
Arias, A. González 
Muñoz, J. M. 
Alejos, O. 
Perdigão, J. M. 
Ferreira, A. R. 
Issue Date: 2005
Citation: physica status solidi (c). 2:10 (2005) 3568-3571
Abstract: 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)
DOI: 10.1002/pssc.200461716
Rights: openAccess
Appears in Collections:FCTUC Eng.Electrotécnica - Artigos em Revistas Internacionais

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