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The Curie temperature of ZrZn2
Affiliation:1. Department of Chemistry, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui University, Hefei 230601, PR China;2. School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230601, PR China;3. Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China;1. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China;2. Nano Science and Technology Program, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
Abstract:The curie of temperature of ZrZn2 is determined from the stoner theory of itinerant electron magnetism by renormalising the first coefficient of the Landau expansion thus taking spin fluctuations into account. These fluctuations are found to be saturated well below Tc so that the behaviour of ZrZn2 around Tc is of stoner type. The calculated and measured values of Tc are in good agreement.
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