Magnetic properties and electronic structure of the actinide systems UAl/sub 2/, NpAl/sub 2/, and PuAl/sub 2/ Page: 3 of 11
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The anomalous properties of the lighter acti-
nides (Th-Pu) compounds are due to the 5f electron
states in these systems. Tn many actinide compounds
the 5f electrons exhibit localized behavior while in
others they tend to behave as band staLes. A
rationale for this varieLy of behavior was given by
Hill |l| in terms ol a correlation hetween magnetic
properties and act i n i de-acL i 11 ide inleruuc I ear separ-
ation. Although Hill obtained a good correlation
his criteria does not explain why IJAJ1 , NpAJl and
I’nAV.., with almost equal act i n i de-ad In i de separa-
tions, have such dilterent magnetic properties at
HAP., is a sp i n-I I net un t i ng material with a T
.Vn T term in the low temperature specilic heal data
|2|, while both NpAP., | d | and 1’iiAI'., |A| order inagiie-
tieally. However it is unclear whether or not the
low temperature behavior o| NpAP., and I’uAV is baud
or lotal moment ma>',uet i siii . The sp i n-1 I net ua l i on
pioperties ol HAP., have been interpreted | ‘i | i a
tei. s ol tion-'loial (band 1 si.lies and l lie pa ram.igtmu
I henry leads to narrower M hainls (exiept lor the
newly discovered hen vy-1 e i in i mu systems | (> | ) Ilian
have ever been observed or rn I eii I a I ed in met. ill it
systems. Allot liei niyiinient loi bainl stales lor the
'»l e|i<il runs in HAP.,, NpAP.,, and I'iiAP., is that I hey
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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/m1/3/: accessed March 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.