Determination of the magnetic transition temperature of dilute ferromagnetic alloys - the Pd(Gd) case |
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| Authors: | H C Praddaude S Foner |
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| Institution: | Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA |
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| Abstract: | The determination of Tc in dilute alloys is examined. As an example, magnetization vs field data in a Pd0.95Gd0.05 alloy are presented. For this alloy, it was not possible to determine a value of Tc using Arrott-Belov-Kouvel (ABK) plots; the conditions for the applicability of ABK plots were not satisfied. Results of very-low-field ac and dc magnetization vs T, which depend mainly on the demagnetization factor, yield a more precise measure of Tc. We conclude that the latter procedures are more useful than ABK plots for determination of Tc in dilute alloys. |
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