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Title: Magnetic behaviour of ferromagnets with random anisotropy
Author: Tejada Palacios, Javier
Martínez Perea, Benjamin
Labarta, Amílcar
Grössinger, R.
Hernando, Antonio, 1947-
Keywords: Propietats magnètiques
Terres rares
Magnetic properties
Rare earths
Issue Date: 1990
Publisher: American Institute of Physics
Abstract: This article reports on a magnetometric study of the effects of diluted local random anisotropy in a ferromagnetic Fe80B20 amorphous matrix. In the low‐temperature and low‐field regime the samples, Fe74RE6B20 (RE=Nd, Ce), show a very rich behavior as a consequence of the competition between, and different dependence on T, of the correlation length associated with local random anisotropy and exchange interactions. In the high‐field regime (Happlied≥1.5 kOe) we observe ferromagnetic behavior with the saturation magnetization varying with temperature according to Bloch’s law. The spin wave stiffness constant D could be determined and lies close to 100 meVÅ2.
Note: Reproducció digital del document proporcionada per AIP i
It is part of: Journal of Applied Physics, 1990, vol. 67, núm. 9, p. 5984-5986
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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