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We have calculated thermodynamic and spectral properties of Ce metal over a wide range of volume and temperature, including the effects of 4f electron correlations, by the merger of the local density approximation and dynamical mean field…

强关联电子 · 物理学 2007-05-23 A. K. McMahan , K. Held , R. T. Scalettar

The band calculation scheme for $f$ electron compounds is developed on the basis of the dynamical mean field theory (DMFT) and the LMTO method. The auxiliary impurity problem is solved by a method named as NCA$f^{2}$v', which includes the…

强关联电子 · 物理学 2009-11-11 O. Sakai , Y. Shimizu , Y. Kaneta

We have calculated ground state properties and excitation spectra for Ce metal with the {\it ab initio} computational scheme combining local density approximation and dynamical mean-field theory (LDA+DMFT). We considered all electronic…

强关联电子 · 物理学 2009-11-07 M. B. Zölfl , I. A. Nekrasov , Th. Pruschke , V. I. Anisimov , J. Keller

We present the band structure of CeIr$_3$ superconductor calculated within the dynamical mean field theory (DMFT). Standard GGA and GGA+U methods fail to reproduce the experimental electronic specific heat coefficient $\gamma_{\rm expt.}$…

强关联电子 · 物理学 2022-01-05 Sylwia Gutowska , Bartlomiej Wiendlocha

The recent discovery of high-temperature superconductivity (HTSC) in doped Iron pnictides is the latest example of unanticipated behavior exhibited by $d$- and $f$-band materials. The symmetry of the SC gap, along with the mechanism of its…

超导电性 · 物理学 2008-10-10 M. S. Laad , L. Craco , S. Leoni , H. Rosner

LDA+DMFT (Local Density Approximation combined with Dynamical Mean-Field Theory) computation scheme has been used to calculate spectral properties of LaFeAsO -- the parent compound of the new high-T_c iron oxypnictides. The average Coulomb…

强关联电子 · 物理学 2009-06-18 V. I. Anisimov , E. Z. Kurmaev , A. Moewes , I. A. Izyumov

Accurate calculations of strongly correlated materials remain a formidable challenge in condensed matter physics, particularly due to the computational demand of conventional methods. This paper presents an efficient solver for dynamical…

强关联电子 · 物理学 2025-12-04 Basile Herzog , Patrik Thunström , Olle Eriksson

We have calculated the band-$f$ hybridizations for Ce$_x$La$_{1-x}$M$_3$ compounds ($x=1$ and $x\rightarrow 0$; M=Pb, In, Sn, Pd) within the local density approximation and fed this into a non-crossing approximation for the Anderson…

凝聚态物理 · 物理学 2009-10-28 J. E. Han , M. Alouani , D. L. Cox

We perform systematic density functional theory (DFT) calculations to assess the performance of various exchange-correlation potentials $V_{xc}$ in describing the chalcogenide GaM$_4$Q$_8$ lacunar spinels (M=Mo, V, Nb, Ta; Q=S, Se). We…

材料科学 · 物理学 2019-09-25 Yiqun Wang , Danilo Puggioni , James M. Rondinelli

Lanthanum and yttrium compounds with composition RE2M2O7 (RE=Y, La; M = Ti, Zr, Hf) have high density and high Z and can be doped with Ce onto the La and Y sites. This makes these compounds good candidates for Ce activated scintillator…

材料科学 · 物理学 2012-03-05 A. Chaudhry , A. Canning , R. Boutchko , M. J. Weber , N. Grønbech-Jensen , S. E. Derenzo

We present an extensive study of structure, composition, electronic and magnetic properties of Ce--Pt surface intermetallic phases on Pt(111) as a function of their thickness. The sequence of structural phases appearing in low energy…

The electronic structures of supercells of CeO$_{2-\delta}$ have been calculated within the Density Functional Theory (DFT). The equilibrium properties such as lattice constants, bulk moduli and magnetic moments are well reproduced by the…

材料科学 · 物理学 2014-04-02 T. Jarlborg , B. Barbiellini , C. Lane , Yung Jui Wang , R. S. Markiewicz , Zhi Liu , Zahid Hussain , A. Bansil

A density functional theory (DFT) of lattice fermion models is presented, which uses the single-particle density matrix gamma_{ij} as basic variable. A simple, explicit approximation to the interaction-energy functional W[gamma] of the…

强关联电子 · 物理学 2009-11-07 R. Lopez-Sandoval , G. M. Pastor

The Kondo resonance is the spectral manifestation of the Kondo properties of the impurity Anderson model, and also plays a central role in the dynamical mean-field theory (DMFT) for correlated electron lattice systems. This article presents…

强关联电子 · 物理学 2009-11-11 J. W. Allen

We perform ab initio electronic structure calculations of the intermetallic compound CeFeGe3 by means of the Tight Binding Linear Muffin-Tin Orbitals-Atomic Sphere Approximation (TB-LMTO-ASA) within the Local Spin Density Approximation…

强关联电子 · 物理学 2007-05-23 E. Chigo Anota , A Flores Riveros , J. F. Rivas Silva

In this study, we investigate the electronic, optical, thermoelectric, and thermodynamic properties of Ca(InP)2 through comprehensive theoretical calculations Ca(InP)2 is a compound with promising applications in materials science and…

材料科学 · 物理学 2023-12-05 S. Dahri , A. Jabar , L. Bahmad , L. B. Drissi , R. Ahl Laamara

In this Letter we report the first LDA+DMFT results (method combining Local Density Approximation with Dynamical Mean-Field Theory) for spectral properties of superconductor LaFePO. Calculated {\bf k}-resolved spectral functions reproduce…

强关联电子 · 物理学 2015-03-13 S. L. Skornyakov , N. A. Skorikov , A. V. Lukoyanov , A. O. Shorikov , V. I. Anisimov

We describe the correlated electronic structure of a prototype Fe-pnictide superconductor, $SmO_{1-x}F_{x}FeAs$, using LDA+DMFT. Strong, multi-orbital electronic correlations generate a low-energy pseudogap in the undistorted phase, giving…

强关联电子 · 物理学 2009-11-13 L. Craco , M. S. Laad , S. Leoni , H. Rosner

Using the density functional theory combined with dynamical mean-field theory, we have performed systematic study of the electronic structure and its band topology properties of Ce$_3$Pt$_3$Bi$_4$ and Ce$_3$Pd$_3$Bi$_4$. At high…

强关联电子 · 物理学 2020-04-29 Chao Cao , Guo-Xiang Zhi , Jian-Xin Zhu

This paper reports calculations for compressed Ce (4f^1), Pr (4f^2), and Nd (4f^3) using a combination of the local-density approximation (LDA) and dynamical mean field theory (DMFT), or LDA+DMFT. The 4f moment, spectra, and the total…

强关联电子 · 物理学 2009-11-11 A. K. McMahan
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