Magnetic properties of ferrihydrite |
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| Authors: | Morten B Madsen Steen Mørup Christian J W Koch |
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| Institution: | (1) Laboratory of Applied Physics II, Technical University of Denmark, DK-2800 Lyngby, Denmark;(2) Chemistry Department, Royal Veterinary and Agricultural University, DK-1871 Frederiksberg C, Denmark |
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| Abstract: | The magnetic properties of a sample of synthetic ferrihydrite have been investigated by use of Mössbauer spectroscopy. The area ratios of the Mössbauer lines are not significantly changed by application of magnetic fields at 5 K, indicating an amorphous magnetic structure. An average magnetic moment per particle of 3.1×10?21 JT?1 was estimated from the dependence of the hyperfine splitting of the Mössbauer spectra on external magnetic fields at 80 K. |
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