Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2008-06-02
Phys. Rev. Lett., 101, 126403 (2008)
Physics
Condensed Matter
Strongly Correlated Electrons
4.4 pages, 4 figures
Scientific paper
The puzzling absence of Pu magnetic moments in a PuAm environment is explored using the self-consistent Dynamical Mean Field Theory (DMFT) calculations in combination with the Local Density Approximation. We argue that delta-Pu -Am alloys provide an ideal test bed for investigating the screening of moments from the single impurity limit to the dense limit. Several important effects can be studied: volume expansion, shift of the bare Pu on-site f energy level, and the reduction of the hybridization cloud resulting from the collective character of the Kondo effect in the Anderson lattice. These effects compensate each other and result in a coherence scale, which is independent of alloy composition, and is around 800K. We emphasize the role of the DMFT self-consistency condition, and multiplet splittings in Pu and Am atoms, in order to capture the correct value of the coherence scale in the alloy.
Haule Kristjan
Kotliar Gabriel
Savrasov S.
Shim Ji Hoon
No associations
LandOfFree
Screening of magnetic moments in PuAm alloy : LDA+DMFT study does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Screening of magnetic moments in PuAm alloy : LDA+DMFT study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screening of magnetic moments in PuAm alloy : LDA+DMFT study will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-632404