Magnetic investigations of Dy(Fe0.9M0.1)2 (M=B,Al, Ga) cubic laves phases |
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| Affiliation: | 1. Institute of Functional Materials, Sichuan University of Science&Engineering, Zigong 643000, PR China;2. Dongguan Key Laboratory of Drug Design and Formulation Technology, Key Laboratory of Research and Development of New Medical Materials of Guangdong Medical University, School of Pharmacy, Guangdong Medical University, Dongguan 523808, PR China;1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, PR China;2. Max Planck Institute for Terrestrial Microbiology LOEWE Center for Synthetic Microbiology (SYNMIKRO), Marburg 35043, Germany;1. State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China |
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| Abstract: | The magnetic properties of the pseudo-binary compounds Dy(Fe0.9M0.1)2 (M=B, Al, Ga) have been investigated. Substitution of M atoms for Fe atoms decreases the Curie temperature and varies the magnetic moment of the Fe atom. The coercivity of the samples increases very rapidly with decreasing temperature. This increase is considerably enhanced by the substitution elements. Pronounced thermomagnetic history effects are observed in the temperature dependence of the magnetization. These effects may be explained as an exponential increase in magnetic hardness on lowering the temperature. |
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