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We present an accurate implementation of total energy calculations into the local density approximation plus dynamical mean-field theory (LDA+DMFT) method. The electronic structure problem is solved through the full potential linear…

强关联电子 · 物理学 2009-03-16 I. Di Marco , J. Minár , S. Chadov , M. I. Katsnelson , H. Ebert , A. I. Lichtenstein

LDA+DMFT, the computation scheme merging the local density approximation and the dynamical mean-field theory, is employed to calculate spectra both below and above the Fermi energy and spin and orbital occupations in the correlated…

强关联电子 · 物理学 2009-11-10 G. Keller , K. Held , V. Eyert , D. Vollhardt , V. I. Anisimov

These brief comments on the article in Phys. Rev. B 93, 155116 (2016), address an inadvertent misrepresentation of the capabilities of density functional theory (DFT) and of its local density approximation (LDA) in describing electronic and…

材料科学 · 物理学 2016-10-18 Diola Bagayoko , Yacouba Issa Diakité , Chinedu E. Ekuma , Lashounda Franklin

We discuss a general approach to a realistic theory of the electronic structure in materials containing correlated d- or f- electrons. The main feature of this approach is the taking into account the energy dependence of the electron…

强关联电子 · 物理学 2009-10-30 A. I. Lichtenstein , M. I. Katsnelson

An intrinsic issue of the LDA+DMFT approach is the so called double counting of interaction terms. How to choose the double-counting potential in a manner that is both physically sound and consistent is unknown. We have conducted an…

强关联电子 · 物理学 2011-06-15 M. Karolak , G. Ulm , T. O. Wehling , V. Mazurenko , A. Poteryaev , A. I. Lichtenstein

The LDA+DMFT method is a very powerful tool for gaining insight into the physics of strongly correlated materials. It combines traditional ab-initio density-functional techniques with the dynamical mean-field theory. The core aspects of the…

强关联电子 · 物理学 2017-11-22 Eva Pavarini

Density functional theory (DFT) is an essential building block for modern theoretical physics, chemistry, and engineering, especially those concerning electronic properties. Through decades of development, various program packages for…

材料科学 · 物理学 2022-11-21 Yusuke Nomura , Ryosuke Akashi

Predicting the compositional phase stability of strongly correlated electron materials is an outstanding challenge in condensed matter physics, requiring precise computations of total energies. In this work, we employ the density functional…

强关联电子 · 物理学 2020-07-28 Eric B. Isaacs , Chris A. Marianetti

Density Functional Theory (DFT) calculations of electrode material properties in high energy density storage devices like lithium batteries have been standard practice for decades. In contrast, DFT modelling of explicit interfaces in…

材料科学 · 物理学 2020-06-24 Kevin Leung

The aim of this review article is to assess the descriptive capabilities of the Hubbard-rooted LDA+U method and to clarify the conditions under which it can be expected to be most predictive. The paper illustrates the theoretical foundation…

材料科学 · 物理学 2013-09-17 Burak Himmetoglu , Andrea Floris , Stefano de Gironcoli , Matteo Cococcioni

We introduce in detail our newly developed \textit{ab initio} LDA+Gutzwiller method, in which the Gutzwiller variational approach is naturally incorporated with the density functional theory (DFT) through the "Gutzwiller density functional…

强关联电子 · 物理学 2013-05-29 XiaoYu Deng , Lei Wang , Xi Dai , Zhong Fang

The combination of density functional theory with dynamical mean-field theory (DFT+DMFT) has become a powerful first-principles approach to tackle strongly correlated materials in condensed matter physics. The wide use of this approach…

强关联电子 · 物理学 2022-05-10 Xin Qu , Peng Xu , Rusong Li , Gang Li , Lixin He , Xinguo Ren

While the traditional local-density approximation (LDA) cannot describe Mott insulators, {\it ab-initio} determination of the Hubbard $U$, for example, limits LDA-plus dynamical mean field theory (DMFT) approaches. Here, we attempt to…

强关联电子 · 物理学 2009-02-12 M. S. Laad , L. Hozoi , L. Craco

The interface electronic structure of correlated LaTiO$_3$/SrTiO$_3$ superlattices is investigated by means of the charge self-consistent combination of the local density approximation (LDA) to density functional theory (DFT) with dynamical…

强关联电子 · 物理学 2013-06-07 Frank Lechermann , Lewin Boehnke , Daniel Grieger

Within the framework of time-dependent density-functional theory (TDDFT), we derive the dynamical linear response of LDA+U functional and benchmark it on NiO, a prototypical Mott insulator. Formulated using real-space Wannier functions, our…

强关联电子 · 物理学 2010-09-06 Chi-Cheng Lee , H. C. Hsueh , Wei Ku

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

Electronic structure of layered LiNiO2 has been controversial despite numerous theoretical and experimental reports regarding its nature. We investigate the charge densities, lithium intercalation potentials and Li diffusion barrier…

材料科学 · 物理学 2021-10-13 Kayahan Saritas , Eric R. Fadel , Boris Kozinsky , Jeffrey C. Grossman

Various methods going beyond density-functional theory (DFT), such as DFT+U, hybrid functionals, meta-GGAs, GW, and DFT-embedded dynamical mean field theory (eDMFT), have been developed to describe the electronic structure of correlated…

强关联电子 · 物理学 2020-07-16 Subhasish Mandal , Kristjan Haule , Karin M. Rabe , David Vanderbilt

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

Accurate high-energy electron diffraction measurements of structure factors of NiO have been carried out to investigate how strong correlations in the Ni 3d shell affect electron charge density in the interior area of nickel ions and…

强关联电子 · 物理学 2009-10-31 S. L. Dudarev , L. -M. Peng , S. Y. Savrasov , J. -M. Zuo