Electronic Structure and Correlation Effects in PuCoIn5 as compared to PuCoGa5

Abstract

Since their discovery nearly a decade ago, plutonium-based superconductors have attracted considerable interest, which is now heightened by the latest discovery of superconductivity in PuCoIn5. In the framework of density functional theory (DFT) within the generalized gradient approximation (GGA) together with dynamical mean-field theory (DMFT), we present a comparative study of the electronic structure of PuCoIn5 with the related material, PuCoGa5. Overall, a similar GGA-based electronic structure, including the density of states, energy dispersion, and Fermi surface topology, was found for both compounds. The GGA Pu 5f band was narrower in PuCoIn5 than in PuCoGa5, resulting in an effective reduction of Kondo screening in the former system, as also shown by DMFT calculations. This phenomenon is due to the expanded lattice for PuCoIn5.

4 pages, 5 embedded eps figures

References in corpus (6)

• Nature of the 5f states in actinide metals
• What is the valence of a correlated solid? The double life of delta-plutonium
• Heavy electrons and the symplectic symmetry of spin
• Supplementary material to Heavy electrons and the symplectic symmetry of spin
• Spectral Properties of delta-Plutonium: Sensitivity to 5f Occupancy
• Coherence scale of coupled Anderson impurities

Cited by in corpus (27)

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• Covalency in transition metal oxides within all-electron Dynamical Mean Field Theory
• Site-Selective Electronic Correlation in alpha-Plutonium Metal
• Intermediate Coupling Model of the Cuprates
• Strong-coupling d-wave superconductivity in PuCoGa_5 probed by point contact spectroscopy
• Avoided Valence Transition in a Plutonium Superconductor
• Unified character of correlation effects in unconventional Pu-based superconductors and δ-Pu
• Consistent LDA'+DMFT approach to electronic structure of transition metal oxides: charge transfer insulators and correlated metals
• Electronic Correlation Induced Expansion of Compensated Electron and Hole Fermi Pockets in delta-Plutonium
• GW quasiparticle calculations with spin-orbit coupling for the light actinides
• Why the Co-based 115 compounds are different?: The case study of GdMIn${}_5$ (M=Co, Rh, Ir)
• Theory of nodal s+- wave pairing symmetry in the Pu-based 115 superconductor family
• Correlation strength and orbital differentiation across the phase diagram of plutonium metal
• Site and orbital selective correlations in $\beta$-Pu
• Orbital-dependent correlations in PuCoGa${}_5$
• Superconducting gap structure of the 115's revisited
• Lattice specific heat for the RMIn${}_5$ (R = Gd, La, Y, M = Co, Rh) compounds: non-magnetic contribution subtraction
• Thermal Expansion of the Heavy-fermion Superconductor PuCoGa${}_5$
• Thermoelectric power as a probe of density of states in correlated actinide materials: the case of PuCoGa${}_5$ superconductor
• Probing magnetism in the vortex phase of PuCoGa${}_5$ by X-ray magnetic circular dichroism
• Fermi surface topology and de Hass-van Alphen orbits in PuIn${}_3$ and PuSn${}_3$ compounds
• Microscopic Properties of the Heavy-Fermion Superconductor PuCoIn${}_5$ Explored by Nuclear Quadrupole Resonance
• Collapse of quasiparticle multiplets and $5f$ itinerant-localized crossovers in cubic phase Pu${}_3$Ga
• Self-consistent spin-fluctuation spectrum and correlated electronic structure of actinides
• Coherent energy scale revealed by ultrafast dynamics of UX${}_3$ (X=Al, Sn, Ga) single crystals
• PuPt2In7: a computational and experimental investigation
• Electronic correlations and topology in Kondo insulator PuB${}_6$