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The unique linear density of state around the Dirac points for the honeycomb lattice brings much novel features in strongly correlated models. Here we study the ground-state phase diagram of the Kondo lattice model on the honeycomb lattice…

强关联电子 · 物理学 2013-05-02 Yin Zhong , Ke Liu , Yu-Feng Wang , Yong-Qiang Wang , Hong-Gang Luo

Ab-initio relativistic dynamical mean-field theory is applied to resolve the long-standing controversy between theory and experiment in the "simple" face-centered cubic phase of plutonium called delta-Pu. In agreement with experiment,…

The periodized cluster dynamical mean-field theory (PCDMFT) combined with exact diagonalization as impurity solver has been applied to the half-filled standard Hubbard model on the honeycomb lattice. A correlated Dirac semimetal is found…

强关联电子 · 物理学 2015-10-26 Qing-Xiao Li , Rong-Qiang He , Zhong-Yi Lu

Calculations combining density functional theory (DFT) and dynamical mean-field theory (DMFT) for transition metal (TM) oxides and similar compounds usually focus on improving the description of the TM $d$ states. Here, we emphasize the…

强关联电子 · 物理学 2025-03-26 Alberto Carta , Anwesha Panda , Claude Ederer

We employ dynamical mean field theory (DMFT) with a Quantum Monte Carlo (QMC) atomic solver to investigate the finite temperature Mott transition in the Hubbard model with the nearest neighbor hopping on a triangular lattice at…

强关联电子 · 物理学 2009-11-11 K. Aryanpour , W. E. Pickett , R. T. Scalettar

We study the antiferromagnetic and the paramagnetic Kondo insulator phases of the Kondo lattice model on the cubic lattice at half-filling using the cellular dynamical mean-field theory (CDMFT) with numerical renormalization group (NRG) as…

强关联电子 · 物理学 2017-01-11 Žiga Osolin , Rok Žitko

We present a large-scale combinatorial-diagrammatic computation of high-order contributions to the strong-coupling Kato-Takahashi perturbation series for the Hubbard model in high dimensions. The ground-state energy of the Mott-insulating…

强关联电子 · 物理学 2014-12-31 Martin Paech , Walter Apel , Eva Kalinowski , Eric Jeckelmann

To analyze the physical properties arising from indirect magnetic exchange between several magnetic adatoms and between complex magnetic nanostructures on metallic surfaces, the real-space extension of dynamical mean-field theory (R-DMFT)…

强关联电子 · 物理学 2015-03-20 Irakli Titvinidze , Andrej Schwabe , Niklas Rother , Michael Potthoff

This work addresses a longstanding theoretical discrepancy using Density Functional Theory (DFT) with experimental observations of CO binding trends on electrocatalytically relevant metals for the CO2 reduction reaction (CO2RR). By…

We propose that a specific spatial configuration of lattice sites that energetically favor {\it 3+} or {\it 4+} Mn ions in moderately doped manganites constitutes approximately a spatially random two-energy-level system. Such an effect…

强关联电子 · 物理学 2009-10-31 Fan Zhong , Jinming Dong , Z. D. Wang

In this paper we explore the use of an equation of motion decoupling method as an impurity solver to be used in conjunction with the dynamical mean field self-consistency condition for the solution of lattice models. We benchmark the…

强关联电子 · 物理学 2007-05-23 Harald O. Jeschke , Gabriel Kotliar

We develop a variational perturbation expansion around dynamical mean-field theory (DMFT) that systematically incorporates nonlocal correlations beyond the local correlations treated by DMFT. We apply this approach to investigate how the…

强关联电子 · 物理学 2025-10-24 Yueyi Wang , Kristjan Haule

We employ dynamical mean-field theory (DMFT) combined with density functional theory (DFT) and the non-equilibrium Green's function technique to investigate the steady-state transport properties of an Fe/MgO/Fe magnetic tunnel junction…

强关联电子 · 物理学 2024-10-11 Declan Nell , Stefano Sanvito , Ivan Rungger , Andrea Droghetti

We present a fully self-consistent combined GW and dynamical mean field (GW+DMFT) study of the spectral properties of the extended two-dimensional Hubbard model. The inclusion of the local dynamical vertex stemming from the DMFT self-energy…

强关联电子 · 物理学 2013-01-22 Thomas Ayral , Philipp Werner , Silke Biermann

Electrons on a two-dimensional (2$d$) lattice which is exposed to a strong uniform magnetic field show intriguing physical phenomena. The spectrum of such systems exhibits a complex (multi-)band structure known as Hofstadter's butterfly.…

强关联电子 · 物理学 2019-09-11 A. A. Markov , G. Rohringer , A. N. Rubtsov

We consider electronic and magnetic properties of chromium, a well-known itinerant antiferromagnet, by a combination of density functional theory (DFT) and dynamical mean-field theory (DMFT). We find that electronic correlation effects in…

强关联电子 · 物理学 2021-08-18 A. S. Belozerov , A. A. Katanin , V. I. Anisimov

The dynamical mean-field theory together with the non-crossing approximation is used to set up a novel scheme to study the electronic structure of strongly correlated electron systems. The non-interacting band structure is obtained from a…

强关联电子 · 物理学 2007-05-23 M. B. Zoelfl , Th. Pruschke , J. Keller , A. I. Poteryaev , I. A. Nekrasov , V. I. Anisimov

Including on-site electronic interactions described by the multi-orbital Hubbard model we study the correlation effects in the electronic structure of bulk palladium. We use a combined density functional and dynamical mean field theory,…

强关联电子 · 物理学 2016-05-04 A. Östlin , W. H. Appelt , I. Di Marco , W. Sun , M. Radonjic , M. Sekania , L. Vitos , O. Tjernberg , L. Chioncel

The role of non-local Coulomb correlations in the honeycomb lattice is investigated within cluster dynamical mean field theory combined with finite-temperature exact diagonalization. The paramagnetic semi-metal to insulator transition is…

强关联电子 · 物理学 2015-05-20 A. Liebsch

We develop, clarify and test various aspects of cluster methods dynamical mean field methods using a soluble toy model as a benchmark. We find that the Cellular Dynamical Mean Field Theory (C-DMFT) converges very rapidly and compare its…

强关联电子 · 物理学 2009-11-07 Giulio Biroli , Gabriel Kotliar