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相关论文: Correlation effects in electronic structure of PuC…

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The electronic structure of the first Pu based superconductor PuCoGa5 is explored using photoelectron spectroscopy and a novel theoretical scheme. Exceptional agreement between calculation and experiment defines a path forward for…

Since their discovery nearly a decade ago, plutonium-based superconductors have attracted considerable interest, which is now heightened by the latest discovery of superconductivity in PuCoIn5. In the framework of density functional theory…

强关联电子 · 物理学 2015-05-28 Jian-Xin Zhu , P. H. Tobash , E. D. Bauer , F. Ronning , B. L. Scott , K. Haule , G. Kotliar , R. C. Albers , J. M. Wills

We study the effect of electronic Coulomb correlations on the vacancy formation energy in paramagnetic alpha-Fe within ab initio dynamical mean-field theory. The calculated value for the formation energy is substantially lower than in…

We report the electronic structure of monoclinic CuO as obtained from first principles calculations utilizing density functional theory plus effective Coulomb interaction (DFT + U) method. In contrast to standard DFT calculations taking…

强关联电子 · 物理学 2014-02-19 C. E. Ekuma , V. I. Anisimov , J. Moreno , M. Jarrell

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

Plutonium is a critically important material as the behavior of its 5f-electrons stands midway between the metallic-like itinerant character of the light actinides and localized atomic-core-like character of the heavy actinides. The…

强关联电子 · 物理学 2020-07-01 Roxanne Tutchton , Wei-ting Chiu , R. C. Albers , G. Kotliar , Jian-Xin Zhu

We studied the evolution of the electronic structure across the quantum critical point in V doped Cr employing high resolution photoemission spectroscopy. Experimental results exhibit signatures of pseudogap and orbital Kondo resonance peak…

强关联电子 · 物理学 2012-04-04 Ganesh Adhikary , R. Bindu , Sudhir K. Pandey , Kalobaran Maiti

We have elucidated the nature of the electron correlation effect in uranium compounds by imaging the partial $\mathrm{U}~5f$ density of states (pDOS) of typical itinerant, localized, and heavy fermion uranium compounds by using the…

Effects of Coulomb correlation on LaOFeAs electronic structure have been investigated by LDA+DMFT(QMC) method. The calculation results show that LaOFeAs is in the regime of intermediate correlation strength with significant part of the…

强关联电子 · 物理学 2009-11-13 A. O. Shorikov , M. A. Korotin , S. V. Streltsov , S. L. Skornyakov , D. M. Korotin , V. I. Anisimov

The electronic structure of the CuO monolayer is investigated taking into account the intra- and interatomic Coulomb interactions on copper and oxygen atoms. Local Coulomb interactions and covalence effects are treated exactly when…

We investigate the electronic structure of Sr$_2$FeMoO$_6$ combining photoemission spectroscopy with a wide range of photon energies and electronic structure calculations based on first-principle as well as model Hamiltonian approaches to…

强关联电子 · 物理学 2007-05-23 Sugata Ray , Priya Mahadevan , Ashwani Kumar , D. D. Sarma , R. Cimino , M. Pedio , L. Ferrari , A. Pesci

A combination of density functional theory in its local density approximation (LDA) with k- and $\omega $ dependent self-energy found from fluctuational-exchange-type random phase approximation (FLEX-RPA) is utilized here to study…

超导电性 · 物理学 2024-03-12 Griffin Heier , Sergey Y. Savrasov

We study the role of static and dynamical Coulomb correlation effects on the electronic and magnetic properties of individual Mn, Fe and Co adatoms deposited on the CuN surface. For these purposes, we construct a realistic Anderson model,…

The electronic structure of Co/Cu(001) and Fe/Cr(001) magnetic multilayers has been investigated within the local density approximation combined with dynamical mean field theory. Our calculation shows enhanced density of states at the Fermi…

强关联电子 · 物理学 2007-05-23 L. Chioncel , A. I. Lichtenstein

We investigate the normal state of the superconducting compound PuCoGa$_5$ using the combination of density functional theory (DFT) and dynamical mean field theory (DMFT), with the continuous time quantum Monte Carlo (CTQMC) and the…

强关联电子 · 物理学 2018-08-01 W. H. Brito , S. Choi , Y. X. Yao , G. Kotliar

We discuss the role of electronic correlations in the iron-based superconductor LiFeAs by studying the effects on band structure, mass enhancements, and Fermi surface in the framework of density functional theory combined with dynamical…

超导电性 · 物理学 2012-03-14 Johannes Ferber , Kateryna Foyevtsova , Roser Valenti , Harald O. Jeschke

We consider a system of two-dimensional electrons strongly localized by disorder. Interactions create a gap in the average tunneling density of states $\nu(E)$ at energies, E, close to the Fermi level. We derive a system of self-consistent…

介观与纳米尺度物理 · 物理学 2009-10-31 Ya. M. Blanter , M. E. Raikh

We consider electronic correlation effects and their impact on magnetic properties of tetragonally distorted chemically ordered FeCo alloys (L1$_0$ structure) being a promising candidate for rare-earth-free permanent magnets. We employ a…

强关联电子 · 物理学 2022-06-02 A. S. Belozerov , A. A. Katanin , V. I. Anisimov

Locally noncentrosymmetric structures in crystals are attracting much attention owing to emergent phenomena associated with the sublattice degree of freedom. The newly discovered heavy fermion superconductor CeRh$_2$As$_2$ is considered to…

超导电性 · 物理学 2024-10-25 Jun Ishizuka , Kosuke Nogaki , Manfred Sigrist , Youichi Yanase

We compare the trends on the strength of electronic correlations across the different phases of elemental Pu focusing on its site and orbital dependence, using a combination of density functional theory (DFT) and dynamical mean field theory…

强关联电子 · 物理学 2021-01-04 W. H. Brito , G. Kotliar
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