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Calculation of Isomer Shift in Mössbauer Spectroscopy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Fricke, Burkhard Waber, James Thomas |
| Copyright Year | 1972 |
| Abstract | The approximations normally used in the calculation of the isomer shift are compared with the exact expressions using Dirac-Slater orbitals and a three-parameter Fermi-type nuclear charge distribution. The nonuniformity of the electronic density over the nuclear volume affects the results. Different choices of the nuclear surface thickness $t$ and the radius $c$ in the protonic density ${\ensuremath{\rho}}_{N}(r)$ also affects the isomer shift differently even though the values are chosen to yield a given value of $\ensuremath{\Delta}〈{r}^{2}〉$. The change in the electronic charge density which is caused by the alteration of ${\ensuremath{\rho}}_{N}(r)$ in the ground state and excited state of the nucleus is discussed using two extreme models and the possible influence on the observable isomer shift is estimated. |
| Starting Page | 3445 |
| Ending Page | 3449 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1103/PhysRevB.5.3445 |
| Alternate Webpage(s) | https://kobra.bibliothek.uni-kassel.de/bitstream/urn:nbn:de:hebis:34-2008091523798/1/Fricke_isomer_1972.pdf |
| Alternate Webpage(s) | https://doi.org/10.1103/PhysRevB.5.3445 |
| Volume Number | 5 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
