Invited Paper AC+MI+SA+TF-MoA3
Signature of Strong Correlations in Actinides and its Compounds: A Dynamical Mean Field Theory Perspective

Monday, October 28, 2013, 2:40 pm, Room 102 C

Plutonium is a unique element, poised at the edge of a localization delocalization transition. Its compounds exhibit

remarkable phenomena, ranging from insulating behavior with a topologically non trivial band structure in PuB6 [1]

to high temperature superconductivity PuCoGa5 [2].

In the last decade a new paradigm for understanding, modeling and predicting physical properties of these materials

has emerged based on realistic implementations of dynamical mean eld theory (DMFT) concepts [3][8] [9]. This theory

treats the wave (band-like) and the (particle-like) multicon gurational multiplet aspects of the f-electrons on the same

footing. This theory accounts for the volume of δ Pu in a paramagnetic con guration [6] and predicted its phonon

spectra [7].

In DMFT, an underlying self consistent impurity model can be used to reconstruct local observables of a material.

An illustrative example is the valence histogram, describing the weight of each atomic con guration in the ground

state of the solid. This important concept, and the resulting prediction for Pu can now be probed experimentally

using resonant XES [5] and neutron form factor measurements [11].

There are now many applications by many groups which have extended the reach of this approach to many actinide

based compounds. We will review the basis of the DMFT approach and compare some results with selected experiments

on 5f electron system. We will conclude with some new directions to face the challenge for material design in this

eld [10].

[1] XY Deng K Haule and G Kotliar preprint(2013).

[2] J. L. Sarrao et al., Nature 420, 297 (2002)

[3] A. Georges, G. Kotliar, W. Krauth, and M. Rozenberg, Rev. of Mod. Phys. 68, 13-125 (1996).

[4] Per Soderlind G Kotliar K Haule P Oppeneer and D Guillaumont, MRS Bulletin vol 35 , 883, (2010).

[5] C.H. Booth, Y. Jiang, D.L.Wang, J.N. Mitchell, P.H. Tobash, E.D. Bauer, M.A.Wall, P.G. Allen, D. Sokaras, D. Nordlund,

T.-C. Weng, M.A. Torrez, and J.L. Sarrao PNAS 109 , 10205-10209 (2012)

[6] J. H. Shim, K. Haule, and G. Kotliar, Science 318 , 1615- 1617 (2007).

[7] X. Dai, S. Y. Savrasov, G. Kotliar, A. Migliori, H. Ledbetter, and E. Abrahams, Science Mag. 300, 953-955 (2003).

[8] (2007) Advances in Physics, 56:6, 829 - 926 (2007)

[9] G. Kotliar, S. Savrasov, K. Haule, V. Oudovenko, O. Parcollet, and C. Marianetti, Rev. of Mod. Phys. 78, 000865 (2006).

[10] Z. P. Yin, Xiaoyu Deng, K. Basu, Q. Yin, G. Kotliar, arXiv:1303.3322 (2013).

[11] M. E. Pezzoli, K. Haule, and G. Kotliar, Phys. Rev. Lett. 106, 016403 (2011).