Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Competition between Kondo and RKKY exchange couplings in Pu{1-x}Am{x}
  alloys   To clarify the role of the Kondo effect in screening local magnetic moments
of Plutonium 5f--electrons as well as its competition to the RKKY interactions
we use a combination of density functional theory with static Hartree Fock and
dynamic Hubbard 1 approximations to calculate the strength of both the Kondo
exchange, J_K, and of the RKKY exchange, J_RKKY, couplings for Pu{1-x}Am{x}
system as a function of x. We find that J_K increases despite the atomic volume
gets larger with the Am doping due to unexpected enhancement of hybridization
between f and conduction electrons in the vicinity of the Fermi level. At the
same time, the RKKY exchange is shown to reduce smoothly with increasing x. Our
results imply that the Kondo effect should be robust against the increase in
interatomic spacing of this alloy.

37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph