You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Hyperfine Structure in the Ground State of the Stable Isotopes of Europium
P. G. H. Sandars and G. K. Woodgate
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences
Vol. 257, No. 1289 (Sep. 6, 1960), pp. 269-276
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/2413815
Page Count: 8
You can always find the topics here!Topics: Hyperfine structure, Europium, Magnetic fields, Ground state, Isotopes, Magnetism, Quadrupoles, Signals, Atoms, Mass spectrometers
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
The hyperfine structure of the ground state 4f76s 28S7/2 of 151Eu and 153Eu has been measured by the method of magnetic resonance in an atomic beam. The sign of the hyperfine structure and the value of gJ have also been measured. The results are: gJ = 1.9935 ± 0.0003; A(151) = -20.0523 ± 0.0002 Mc/s, A(153) = -8.8532 ± 0.0002 Mc/s, B(151) = -0.7012 ± 0.0035 Mc/s, B(153) = -1.7852 ± 0.0035 Mc/s; A(151)/A(153) = 2.26498 ± 0.00008, B(151)/B(153) = 0.393 ± 0.003. These results disagree with the values expected for the pure 8S7/2 state formed from a half-filled shell of f-electrons. Calculations on the basis of admixture of higher states of the configuration by spin-orbit coupling account for the discrepancy in gJ, but do not explain the values of the hyperfine structure constants A and B. Further theoretical work is in progress.
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences © 1960 Royal Society