Hyperfine Interactions of111Cd in Some Rare Earth Laves Phases RT2 (T = Mn, Fe)

Autor: L.G. Shpinkova, A. A. Sorokin, G.K. Ryasny, L.N. Fomichova, B.A. Komissarova, A.V. Tsvyashchenko
Rok vydání: 1999
Předmět:
Zdroj: physica status solidi (b). 213:71-77
ISSN: 1521-3951
0370-1972
DOI: 10.1002/(sici)1521-3951(199905)213:1<71::aid-pssb71>3.0.co;2-k
Popis: Radioactive 111 In was introduced into the Laves phases YMn 2 , GdFe 2 and YbFe 2 synthesized under pressure of 8 GPa, and the hyperfine interaction of the daughter 111 Cd was measured by the perturbed angular correlation method. In the obtained hexagonal (C14) phase YMn 2 111 In is substituted for Mn, predominantly at h-sites, experiencing there an electric quadrupole interaction with ν Q = 32.0(5) MHz and η = 0.51(5) at 300 K. In GdFe 2 and YbFe 2 (cubic C15) most of the 111 In-1 1 Cd probes (80%) substituted mainly for the rare earth atoms and experienced a magnetic hyperfine field |B hf | = 2.92(4) T and 3.32(7) T, respectively, at 300 K. The results are discussed together with the published data for the normal cubic YMn 2 , and for LuFe 2 and ZrFe 2 .
Databáze: OpenAIRE
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