X-ray magnetic scattering from transuranium systems

Lander, G. H.; Mannix, D.; Wastin, F.; Rebizant, J.; Lidstro¨m, E.; Vettier, C.; Caciuffo, R.; Bernhoeft, N.; Normile, P.; Stirling, W. G.; Hiess, A.
July 2000
AIP Conference Proceedings;2000, Vol. 532 Issue 1, p35
Academic Journal
The magnetic scattering of x-rays is a weak process, difficult to observe even with present day synchrotrons if heavy elements, with their associated high absorption cross sections, are used. A decade ago it was discovered that by tuning the photon energy to an absorption edge there is often a large enhancement of the magnetic signal. Some of the largest signals are, in fact, found at the M edges (which lie around 4 keV) of the actinides. This is because these resonant energies signify transitions from core 3d to empty orbits in the 5f shells, and it is electrons in the 5f shells of the actinides that give rise to their magnetism. © 2000 American Institute of Physics.


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