Title:
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Magnetic behaviour of ferromagnets with random anisotropy
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Author:
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Tejada Palacios, Javier; Martínez Perea, Benjamin; Labarta, Amílcar; Grössinger, R.; Hernando, Antonio, 1947-
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Propietats magnètiques -Terres rares -Magnetic properties -Rare earths -Anisotropy -Ferromagnetism -Anisotropia -Ferromagnetisme |
Rights:
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(c) American Institute of Physics, 1990
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Document type:
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Article Article - Published version |
Published by:
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American Institute of Physics
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