ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Isomer shifts of the 81.0 keVγ-transition in133Cs have been measured by the Mössbauer technique for eight ionic Cs compounds, and for the intermetallic compound CsBi2. The source was133Ba in CaF2. The shifts, relative to CsCl, range from −1.4 · 10−8 eV for CsNO3 to +1.6 · 10−8 eV for CsBi2. The difference in electron density at the Cs nucleus between CsBi2 and CsNO3 is discussed using chemical bonding arguments. For the Cs halides, this difference is estimated from the overlap of outer electron shells in the lattices. A relative change of the mean square charge radiusδ〈r 2〉/〈r 2〉=+2 · 10−4 is derived.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01379789
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