Mössbauer study of very dilute Pd(Fe) alloys at very low temperatures |
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| Authors: | W Gierisch W Koch FJ Litterst GM Kalvius P Steiner |
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| Institution: | Physik Department, Technische Universität München, D-8046 Garching, Fed. Rep. Germany;Freie Universität Berlin, D-1000 Berlin, Germany |
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| Abstract: | The magnetic behaviour of very dilute (7 ppm and 0.6 ppm) Pd(Fe) alloys has been studied by Mössbauer spectroscopy in external fields up to 6 T in the temperature range between 0.018 and 300 K. No magnetic ordering was observed even at the lowest temperature. Above 0.067 K the magnetization exhibits free-spin behaviour. The saturation moment was found to be independent of temperature. Magnetic hyperfine patterns observed below 0.067 K were interpreted in terms of paramagnetic hyperfine interactions in the regime of slow electronic relaxation. |
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