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- W2339176069 abstract "The Mossbauer technique has been used to study the nuclear hyperfine interactions and lifetimes in W182 (2+ state) and W183 (3/2- and 5/2- states) with the following results: g(5/2-)/g(2+) = 1.40 ± 0.04; g(3/2- = -0.07 ± 0.07; Q(5/2-)/Q(2+) = 0.94 ± 0.04; T1/2(3/2-) = 0.184 ± 0.005 nsec; T1/2(5/2-) > 0.7 nsec. These quantities are discussed in terms of a rotation-particle interaction in W183 due to Coriolis coupling. From the measured quantities and additional information on γ-ray transition intensities magnetic single-particle matrix elements are derived. It is inferred from these that the two effective g-factors, resulting from the Nilsson-model calculation of the single-particle matrix elements for the spin operators ŝz and ŝ+, are not equal, consistent with a proposal of Bochnacki and Ogaza. The internal magnetic fields at the tungsten nucleus were determined for substitutional solid solutions of tungsten in iron, cobalt, and nickel. With g(2+) = 0.24 the results are: |Heff(W-Fe)| = 715 ± 10 kG; |Heff(W-Co)| = 360 ± 10 kG; |Heff(W-Ni)| = 90 ± 25 kG. The electric field gradients at the tungsten nucleus were determined for WS2 and WO3. With Q(2+) = -1.81b the results are: for WS2, eq = -(1.86 ± 0.05) 1018 V/cm2; for WO3, eq = (1.54 ± 0.04) 1018 V/cm2 and ƞ = 0.63 ± 0.02. The 5/2- state of Pt195 has also been studied with the Mossbauer technique, and the g-factor of this state has been determined to be -0.41 ± 0.03. The following magnetic fields at the Pt nucleus were found: in an Fe lattice, 1.19 ± 0.04 MG; in a Co lattice, 0.86 ± 0.03 MG; and in a Ni lattice, 0.36 ± 0.04 MG. Isomeric shifts have been detected in a number of compounds and alloys and have been interpreted to imply that the mean square radius of the Pt195 nucleus in the first-excited state is smaller than in the ground state." @default.
- W2339176069 created "2016-06-24" @default.
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- W2339176069 date "1967-01-01" @default.
- W2339176069 modified "2023-09-23" @default.
- W2339176069 title "Nuclear Hyperfine Interactions in W¹⁸², W¹⁸³, and Pt¹⁹⁵ as Studied by the Mossbauer Effect" @default.
- W2339176069 doi "https://doi.org/10.7907/xs89-6t82." @default.
- W2339176069 hasPublicationYear "1967" @default.
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