Mossbauer and magnetization studies of amorphous NdFeB compositionally modulated thin films

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Title:	Mossbauer and magnetization studies of amorphous NdFeB compositionally modulated thin films
Author:	Martínez Benjamin, Joan Josep; Moreu, M. A.; Ruiz, A.; Labarta, Amílcar; Obradors, Xavier; Briones Fernández-Pola, Fernando; Tejada Palacios, Javier
Other authors:	Universitat de Barcelona
Abstract:	Several NdFeB compositionally modulated thin films are studied by using both conversion electron Mossbauer spectra and SQUID (superconducting quantum-interference-device) magnetometry. Both the hyperfine fields and the easy magnetization magnitude are not correlated with the modulation characteristic length (lambda) while the magnetization perpendicular to the thin-film plane decreases as lambda increases. The spectra were recorded at room temperature being the gamma rays perpendicular to the substrate plane. The magnetization measurements were recorded by using a SHE SQUID magnetometer in applied magnetic fields up to 5.5 T and in the temperature range between 1.8 and 30 K.
Subject(s):	-Efecte de Mössbauer -Propietats magnètiques -Aliatges -Substàncies amorfes -Pel·lícules fines -Interaccions hiperfines -Mossbauer effect -Magnetic properties -Alloys -Amorphous substances -Thin films -Hyperfine interactions
Rights:	(c) IEEE, 1988
Document type:	Article Article - Published version
Published by:	IEEE
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