Electric quadrupole interaction of Cd in (Ce1−xLax)Ru2 and (Ce1−yCay)Ru2 synthesized at high pressure |
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Authors: | A.A SorokinG.K Ryasniy B.A KomissarovaL.G Shpinkova A.V TsvyashchenkoL.N Fomichova A.S Golubeva |
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Affiliation: | a Skobeltsin Institute of Nuclear Physics, Moscow State University, 119899 Moscow, Russian Federation b Vereshchagin Institute of High Pressure Physics, Russian Academy of Sciences, 142092 Troitsk, Moscow region, Russian Federation c Shubnikov Institute of Crystallography, Russian Academy of Sciences, 119333 Moscow, Leninskiy prosp. 59, Russian Federation |
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Abstract: | Quasibinary Laves systems (Ce1−xLax)Ru2 and (Ce1−yCay)Ru2 doped with 111In were synthesized at a pressure of 8 GPa, and variations of the electric quadrupole interaction of 111Cd at the Ru sites have been studied by the method of time-differential perturbed angular correlation in a wide range of Ce-La and Ce-Ca relative concentrations. In the first case two sites with quadrupole frequencies νQ≅220 and 150 MHz persist at x≤0.2, while at x≥0.3 only the higher frequency component remains in the spectra, which are similar to that of pure LaRu2. In the series (Ce1−yCay)Ru2, at y≥0.03 the lower frequency component was washed out except in samples with y=0.1 and 0.2, where it was restored. |
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Keywords: | 75.30 Mb 71.20 Lp 71.70 Jp |
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