Mößbauereffekt in FeCl2, FeSO4 und FeSO4 · 7 H2O |
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Authors: | Walter Klumpp Dipl-Phys Klaus -Werner Hoffmann |
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Institution: | 1. Institut für Strahlenphysik der Universit?t Stuttgart, Deutschland 2. Institut für Kernenergetik der Universit?t Stuttgart, Herdweg 51, 7000, Stuttgart N
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Abstract: | Mößbauereffect measurements were performed with FeCl2, FeSO4 and FeSO4 · 7 H2O in the temperature range between 5 and 300 ?K. The quadrupole splittings at 5 ?K were determined to be (1.300±0.027) mm/sec, (3.650±0.053) mm/sec, and (3.350±0.053) mm/sec respectively. From the temperature dependence of the quadrupole splittings it follows that in FeCl2 the energy of the excited 3d-electron-level isδ=150 cm?1, in FeSO4 δ 1=360 cm?1 andδ 2=1680 cm?1 and in FeSO4 · 7 H2Oδ 1=480 cm?1 andδ 2=1300 cm?1. The magnitudes of the magnetic field at the iron nucleus at 5 ?K are (202±8) kOe for FeSO4 and (0±4) kOe for FeCl2. |
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