Magnetic properties and electronic structure of the actinide systems UAl/sub 2/, NpAl/sub 2/, and PuAl/sub 2/ Page: 7 of 11
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Orbital content of band states
One underlying assumption in the electronic
structure picture of the actinide compounds is that
the angular momentum Ls quenched just as it is in
tho transition metal compounds. Recently Brooks and
Kelly [9| have given the argument that due to the
spin-orbit interaction the spin drags an orbital
contribution along and that angular momentum is not
quenched in the actinide systems. le was also able
to calculate the orbital coniFibution and showed
that l lie results were more consistent with experi-
mental data Ilian those which assumed no orbital
contribution. The implications this has for UAfl^i
NpAJl^, eel PuAJl^ is the following: doing across
this series the spiicorhit interaction as well as
the number ol I electrons increases by a factor of
L’. Therefore the orbital coni r i hut i on to the
angular momentum can change significantly from HAf.,
to I’nAtf and raises l lie possibility that I lie orbital
routribut ion can damp the ;pin-1 I netuat ion
cxciI at ions.
done I usion
Although there are differences in l lie details
ol the mie-e I ei t run elect mini structure ot these
llnee system:;, (heir overall structure is similar
and in l.nt they can lie viewed as l lie same system,
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Albers, R.C.; Boring, A.M. & Koelling, D.D. Magnetic properties and electronic structure of the actinide systems UAl/sub 2/, NpAl/sub 2/, and PuAl/sub 2/, article, January 1, 1985; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1093236/m1/7/: accessed March 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.