Mössbaueruntersuchungen anPt undHg.

Autor: Walcher, Dorothee
Zdroj: Zeitschrift für Physik; 1971, Vol. 246 Issue 2, p123-150, 28p
Abstrakt: Using the Mössbauer technique the magnetic hyperfine splitting of the 130 keV transition inPt has been observed in a Pt-Fe alloy. The derived magnetic moment is μ=(0.81 μ. Isomershift measurements with the 130 keV and the 99 keV transitions in alloys yielded Δ〈 r〉/Δ〈 r〉=1.5±0.2 for the ratio of the changes in the mean square charge radius of the two excited states. From isomershifts of the 99 keV transition in compounds an estimate of Δ〈 r〉/〈 r〉=−(1.6) · 10 is made for the change in radius of the first excited state. The linewidth of the Mössbauer spectrum of the 32.2 keV transition inHg gives a lower limit of 0.1 ns for the half-life of the second excited state. The results are compared with values for other nuclides in this mass region. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index