Möβbauereffekt am61Ni |
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Authors: | Ull Erich |
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Institution: | 1. Institut für Technische Kernphysik der Technischen Hochschule Darmstadt, Deutschland
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Abstract: | With the Möβbauer technique the hyperfine splittings of the 67.4 keV transition of61Ni in compounds and alloys have been studied. A magnetic momentΜ 61,4=+ (0,477 ±0.031)Μ n of the first excited state has been determined. From isomer shifts an order of magnitude estimate of the change in radius ofδ〈r 2〉/〈r 2〉=?6· 10?4 can be inferred. The electric quadrupole interaction of the first excited level has been observed in Ni-J-boracite. In addition the hyperfine fields at the nickel sites were determined in the alloy series Ni x Fe1-x (0≦x≦1). In one case an effect of polarization in a high external field is measured. The fields in some rare earth (RE) intermetallic compounds of the form RENi2 were deduced from linewidth to be less than 15 kOe. |
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