The theory of neutron scattering from mixed harmonic solids |
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Authors: | Warner M Lovesey S W Smith J |
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Institution: | (1) Institut für Festkörperphysik, Technische Hochschule Darmstadt, Hochschulstrasse 2, D-6100 Darmstadt, Federal Republic of Germany |
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Abstract: | In the intermediate valent cerium alloys Ce1–xYxPd3, Ce(Pd1–xRhx)3 and Ce(Pd1–xAgx)3 the Gd3+-ESR shows a non-linear increase of the linewidth H(T) in the temperature range 4.2K T 300K. The deviation from the linear Korringa law can be described by a reduced conduction electron density of states at the Gd site (which is a Ce lattice site) in the energy range E
4f (=width of the Ce 4f states). This supposition allows a determination of E
4f from the H(T)-data. For CePd3:Gd3+ we find E
4f=(650±100) K. E
4f increases with Y- and Rh-concentration and decreases with Ag-concentration. |
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