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The influence of electronic structure evolution upon pressure on the temperature dependencies of electrical resistivity of pure Np, Pu, Am, and Cm metals have been investigated within coherent potential approximation (CPA) for many-bands…

The {\em around-mean-field} LSDA+U correlated band theory is applied to investigate the electronic and magnetic structure of $fcc$-Pu-Am alloys. Despite a lattice expansion caused by the Am atoms, neither tendency to 5$f$ localization nor…

By LDA+U method with spin-orbit coupling (LDA+U+SO) the magnetic state and electronic structure have been investigated for plutonium in \delta and \alpha phases and for Pu compounds: PuN, PuCoGa5, PuRh2, PuSi2, PuTe, and PuSb. For metallic…

Strongly Correlated Electrons · Physics 2007-05-23 A. O. Shorikov , A. V. Lukoyanov , M. A. Korotin , V. I. Anisimov

The results of the electronic structure calculations performed on SmN by using the LDA+U method with and without including the spin-orbit coupling are presented. Within the LDA+U approach, a N(2$p$) band polarization of $\simeq 0.3\ \mu_B$…

Materials Science · Physics 2015-06-23 C. Morari , F. Beiuşeanu , I. Di Marco , L. Peters , E. Burzo , S Mican , L. Chioncel

The electronic structures of the actinide elements U, Np, Pu, Am, Cm and Bk are investigated within the self-interaction corrected local spin density approximation. This method allows to describe a dual character of the 5f electrons, some…

Strongly Correlated Electrons · Physics 2009-11-11 A. Svane , L. Petit , Z. Szotek , W. M. Temmerman

We systematically investigate the electronic structures of americium (Am), curium (Cm), berkelium (Bk), and californium (Cf) in both the ambient-pressure double hexagonal close-packed (dhcp) and high-pressure face-centered cubic (fcc)…

Strongly Correlated Electrons · Physics 2026-04-15 Haiyan Lu

A general reformulation of the exchange energy of $5f$-shell is applied in the analysis of the magnetic structure of various actinides compounds in the framework of LDA+U method. The calculations are performed in an efficient scheme with…

Strongly Correlated Electrons · Physics 2016-08-14 Fredrik Bultmark , Francesco Cricchio , Oscar Grånäs , Lars Nordström

The electronic structure of selected rare-earth atoms adsorbed on a free-standing graphene was investigated using methods beyond the conventional density functional theory (DFT+U, DFT+HIA and DFT+ED). The influence of the electron…

Strongly Correlated Electrons · Physics 2016-09-12 Agnieszka L. Kozub , Alexander B. Shick , Frantisek Maca , Jindrich Kolorenc , Alexander I. Lichtenstein

We here study electronic structure and magnetic properties of bcc Co$_{x}$Fe$_{1-x}$, Cr$_{x}$Fe$_{1-x}$ and Mn$_{x}$Fe$_{1-x}$ in their ferromagnetic phases using Augmented Space Recursion technique coupled with tight-binding linearized…

Materials Science · Physics 2019-08-17 Subhradip Ghosh , Chhanda Basu Chaudhuri , Biplab Sanyal , Abhijit Mookerjee

LDA+DMFT method in the framework of the iterative perturbation theory (IPT) with full LDA Hamiltonian without mapping onto the effective Wannier orbitals. We then apply this LDA+DMFT method to ferromagnetic bcc-Fe and fcc-Ni as a test of…

Strongly Correlated Electrons · Physics 2008-09-26 Oki Miura , Takeo Fujiwara

The accuracy of LDA + U total energies is tested by predicting the high pressure behavior of rocksalt-structured FeO, including metal-insulator and magnetic transitions, equation of state, and lattice strain, as functions of the Coulomb…

Strongly Correlated Electrons · Physics 2007-05-23 S. A. Gramsch , R. E. Cohen , S. Y. Savrasov

The self-interaction corrected (SIC) local spin-density approximation (LSD) is used to investigate the groundstate valency configuration of the actinide ions in the actinide mono-carbides, AC (A = U, Np, Pu, Am, Cm), and the actinide…

Strongly Correlated Electrons · Physics 2009-04-29 L. Petit , A. Svane , Z. Szotek , W. M. Temmerman , G. M. Stocks

We study the spin-dependent electronic structure of UTe and UT_{2}Si_{2} (T=Cu and Mn) compounds with a combination of x-ray magnetic circular dichroism measurements and first principle calculations. By exploiting the presence of sizable…

Strongly Correlated Electrons · Physics 2016-01-12 R. D. dos Reis , L. S. I. Veiga , D. Haskel , J. C. Lang , Y. Joly , F. G. Gandra , N. M. Souza-Neto

In this paper we report comprehensive experimental and theoretical investigation of magnetic and electronic properties of the intermetallic compounds Pr2Fe17 and Gd2Fe17. For the first time electronic structure of these two systems was…

Strongly Correlated Electrons · Physics 2007-05-23 Yu. V. Knyazev , A. V. Lukoyanov , Yu. I. Kuz'min , A. G. Kuchin , I. A. Nekrasov

A first-principles electronic structure study of orthorhombic, monoclinic and rhombohedral LiMnO$_{2}$ has been carried out using the full-potential linearized augmented plane-wave method. The exchange and correlations have been treated…

Strongly Correlated Electrons · Physics 2009-11-11 Nitya Nath Shukla , R. Prasad

The electronic structure and magnetic properties of a single Fe adatom on a CuN surface have been studied using density functional theory in the local spin density approximation (LSDA), the LSDA+U approach and the local density…

Strongly Correlated Electrons · Physics 2016-04-20 S. K. Panda , I. Di Marco , O. Grånäs , O. Eriksson , J. Fransson

The electronic structure of lanthanide and actinide compounds is often characterized by orbital ordering of localized $f$-electrons. Density-functional theory (DFT) studies of such systems using the currently available LDA+$U$ method are…

Strongly Correlated Electrons · Physics 2015-11-17 Fei Zhou , Vidvuds Ozolins

The electronic and magnetic structures of A2CrN3 (A = Ce, U) ternary compounds calculated based on band magnetism within DFT exhibit different behaviors of the nf elements (n = 4, 5 resp.). Charge analysis allows to formally express the two…

Materials Science · Physics 2018-08-30 Samir F. Matar , Charbel N. Kfoury

The equation of state, structural behavior and phase stability of {\alpha}-uranium have been investigated up to 1.3 TPa using density functional theory, adopting a simple description of electronic structure that neglects the spin-orbit…

Materials Science · Physics 2015-05-28 S. Adak , H. Nakotte , P. F. de Châtel , B. Kiefer

The problem of importance of strong correlations for the electronic structure, transport and magnetic properties of half--metallic ferromagnetic CrO_2 is addressed by performing density functional electronic structure calculations in the…

Strongly Correlated Electrons · Physics 2009-11-10 A. Toropova , G. Kotliar , S. Y. Savrasov , V. S. Oudovenko
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