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In the present work, the atomic and the electronic structures of Au3N, AuN and AuN2 are investigated using first-principles density-functional theory (DFT). We studied cohesive energy vs. volume data for a wide range of possible structures…

Materials Science · Physics 2015-11-24 Mohammed S. H. Suleiman , Daniel P. Joubert

Predicting the compositional phase stability of strongly correlated electron materials is an outstanding challenge in condensed matter physics. In this work, we employ the DFT+U formalism to address the effects of local correlations due to…

Strongly Correlated Electrons · Physics 2017-02-01 Eric B. Isaacs , Chris A. Marianetti

In [Phys. Rev. B 107, 094433 (2023)], Deng et al. have proposed an electron-muon correlation functional within the context of the two-component density functional theory (TC-DFT) for crystals/molecules containing positively charged muons.…

Other Condensed Matter · Physics 2024-04-30 Mohammad Goli , Nahid Sadat Riyahi , Shant Shahbazian

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

We study the electronic and structural properties of the low-temperature ordered phase of hydrogen-bonded molecular conductors, $\kappa$-D$_3$(Cat-EDT-TTF)$_2$ and its selenium-substituted analog $\kappa$-D$_3$(Cat-EDT-ST)$_2$, by means of…

Strongly Correlated Electrons · Physics 2020-01-17 Takao Tsumuraya , Hitoshi Seo , Tsuyoshi Miyazaki

Using a combination of density functional theory and dynamical mean field theory we show that electric polarization and magnetism are strongly intertwined in (TMTTF)$_2$-$X$ (X$=$PF$_6$, As$F_6$, and SbF$_6$) organic crystals and they…

Strongly Correlated Electrons · Physics 2015-03-19 G. Giovannetti , R. Nourafkan , G. Kotliar , M. Capone

Multipolar magnetic phases in correlated insulators represent a great challenge for Density Functional Theory (DFT) due to the coexistence of intermingled interactions, typically spin-orbit coupling, crystal field and complex non-collinear…

Strongly Correlated Electrons · Physics 2022-07-27 Dario Fiore Mosca , Leonid V. Pourovskii , Cesare Franchini

Motivated by the search for design principles of rare-earth-free strong magnets, we present a study of electronic structure and magnetic properties of the ferromagnetic metal Fe3GeTe2 within local density approximation (LDA) of the density…

Spin susceptibility of stabilized \delta phase in the Pu-Ga alloy is studied by measuring {69,71}^Ga NMR spectra and nuclear spin-lattice relaxation rate {69}T_{1}^{-1} in the temperature range 5 - 350 K. The shift ({69}^K) of the…

Strongly Correlated Electrons · Physics 2009-11-10 Yu. Piskunov , K. Mikhalev , A. Gerashenko , A. Pogudin , V. Ogloblichev , S. Verkhovskii , A. Tankeyev , V. Arkhipov , Yu. Zouev , S. Lekomtsev

The work presents the electronic structure, spin state and optical properties of TM-dinuclear molecules (TM = Cr, Mn, Fe, Co, and Ni) which was modelled according to the recently reported Pt$^{II}$-dinuclear complex…

Materials Science · Physics 2019-12-19 Indukuru Ramesh Reddy , Kartick Tarafder

Despite the wealth of experimental data on the Fe-pnictide compounds of the KFe2As2-type, K = Ba, Ca, or Sr, the main theoretical work based on multiorbital tight-binding models has been restricted so far to the study of the related 1111…

Superconductivity · Physics 2010-06-16 S. Graser , A. F. Kemper , T. A. Maier , H. -P. Cheng , P. J. Hirschfeld , D. J. Scalapino

We review theoretical investigations on the origin of the orbital selective phase where localized and itinerant electrons coexist in the d shell at intermediate strength of the on-site Coulomb interactions between electrons. In particular,…

Strongly Correlated Electrons · Physics 2014-03-10 Yao Yao , Yu-Zhong Zhang , Hunpyo Lee , Harald O. Jeschke , Roser Valenti , Hai-Qing Lin , Chang-Qin Wu

The correlated electronic structure of iron, cobalt and nickel is investigated within the dynamical mean-field theory formalism, using the newly developed full-potential LMTO-based LDA+DMFT code. Detailed analysis of the calculated electron…

Strongly Correlated Electrons · Physics 2009-03-16 Alexei Grechnev , Igor Di Marco , M. I. Katsnelson , A. I. Lichtenstein , John Wills , Olle Eriksson

We have investigated the electronic structure and the Fermi surface of SnO using density functional theory (DFT) calculations within recently proposed exchange-correlation potential (PBE+mBJ) at ambient conditions and high pressures up to…

Materials Science · Physics 2015-05-28 J. A. McLeod , A. V. Lukoyanov , E. Z. Kurmaev , L. D. Finkelstein , A. Moewes

The design of novel cathode materials for Li-ion batteries would greatly benefit from accurate first-principles predictions of structural, electronic, and magnetic properties as well as intercalation voltages in compounds containing…

Materials Science · Physics 2022-11-03 Iurii Timrov , Francesco Aquilante , Matteo Cococcioni , Nicola Marzari

We study the electronic structure and the magnetic correlations of cyanocobalamin ($C_{63}H_{88}CoN_{14}O_{14}P$) by using the framework of the multi-orbital single-impurity Haldane-Anderson model of a transition metal impurity in a…

Strongly Correlated Electrons · Physics 2016-05-31 Selma Mayda , Zafer Kandemir , Nejat Bulut

As a possible mechanism of the $\gamma-\alpha$ phase transition in pristine cerium a change of the electronic density from a disordered state with symmetry Fm-3m to an ordered state Pa-3 has been proposed. Here we include on-site and inter-…

Strongly Correlated Electrons · Physics 2009-11-07 A. V. Nikolaev , K. H. Michel

The geometric structure of the Rh$_8^+$ cation is investigated using a combination of far-infrared multiple photon dissociation spectroscopy and density functional theory (DFT) calculations. The energetic ordering of the different…

Atomic and Molecular Clusters · Physics 2015-05-14 D. J. Harding , T. R. Walsh , S. M. Hamilton , W. S. Hopkins , S. R. Mackenzie , P. Gruene , M. Haertelt , G. Meijer , A. Fielicke

We study the structural, electronic, and magnetic properties of Co$_2$ZAl compounds employing a pseudopotential electronic bandstructure method. The stability of the compounds is established through the formation and cohesive energy…

Materials Science · Physics 2020-08-11 Sashi Nepal , Ramesh Dhakal , Iosif Galanakis

Correlation effects are observed strong in Iron chalcogenides superconductors by experimental and theoretical investigations. We present a comparative study of the influence of Coulomb interaction and Hund's coupling in the electronic…

Superconductivity · Physics 2023-10-31 H. Lohani , P. Mishra , B. R. Sekhar