English
Related papers

Related papers: Unraveling the 4f electronic structures of cerium …

200 papers

A transformation between the magnetically ordered CeCoGe$_3$ and heavy fermion CeFeGe$_3$ is isostructural but not isoelectronic, therefore the characterization of the electronic structure of the CeCo$_{1-x}$Fe$_x$Ge$_3$ series is of…

Materials Science · Physics 2025-03-25 P. Skokowski , K. Synoradzki , M. Werwiński , A. Bajorek , G. Chełkowska , T. Toliński

Semiconducting skutterudite CeFe$_4$P$_{12}$ is investigated by synchrotron x-ray photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). Ce 3$d$ core-level PES and 3$d-4f$ XAS, in combination with single impurity Anderson…

It is a long-standing important issue in heavy fermion physics whether $f$-electrons are itinerant or localized when the magnetic order occurs. Here we report the {\it in situ} scanning tunneling microscopy observation of the electronic…

Ce$_{2}$PtIn$_{8}$ is a recently discovered heavy-fermion system structurally related to the well-studied superconductor CeCoIn$_{5}$. Here, we report on low-temperature de Haas-van Alphen-effect measurements in high magnetic fields in…

Strongly Correlated Electrons · Physics 2019-06-04 J. Klotz , K. Götze , E. L. Green , A. Demuer , H. Shishido , T. Ishida , H. Harima , J. Wosnitza , I. Sheikin

Rare-earth doped form, ceria (CeO2) is of interest as a potential candidate for solid oxide fuel cells (SOFCs) because of its relatively high oxygen ion conductivity at temperatures below 600 {\deg}C. At the present time, computational…

Materials Science · Physics 2016-05-25 Musa Alaydrus , Mamoru Sakaue , Hideaki Kasai

Electronic structure calculations of the Verwey ground state of magnetite, Fe3O4, using density functional theory with treatment of on-site Coulomb interactions (DFT+U scheme) are reported. These calculations use the recently-published…

Strongly Correlated Electrons · Physics 2013-01-16 Mark Senn , Ingo Loa , Jon P. Wright , J. Paul Attfield

Understanding the behavior of 4$f$ electrons in materials containing rare earth elements is one of the fundamental questions within condensed matter physics. In this work the electronic properties of isostructural CeCN$_5$ and TbCN$_5$,…

Materials Science · Physics 2026-04-28 Amanda Ehn , Florian Trybel , Talha Bin Masood , Leonid V. Pourovskii , Igor A. Abrikosov

Using the state-of-art dynamical mean-field theory combined with density functional theory method, we have performed systematic study on the temperature and pressure dependent electronic structure of ferromagnetic quantum critical material…

Strongly Correlated Electrons · Physics 2020-12-01 Chao Cao , Jian-Xin Zhu

High-resolution hard X-ray photoemission measurements have been performed to clarify the electronic structure originating from the strong correlation between electrons in bulk Ce 3$d$ core-level spectra of CeNi$_{1-x}$Co$_x$Ge$_2$ (0 $\leq$…

Strongly Correlated Electrons · Physics 2015-05-13 H. J. Im , T. Ito , S. Kimura , H. -D. Kim , J. B. Hong , Y. S. Kwon

The electronic structure and possible electronic orders in monolayer NbF$_4$ are investigated by density functional theory and functional renormalization group. Because of the niobium-centered octahedra, the energy band near the Fermi level…

Superconductivity · Physics 2019-12-19 Yang Yang , Wan-Sheng Wang , C. S. Ting , Qiang-Hua Wang

We report on results from high-energy spectroscopic measurements on CeFe2, a system of particular interest due to its anomalous ferromagnetism with an unusually low Curie temperature and small magnetization compared to the other rare…

Electric field gradients (EFG's) were calculated for the $CeIn_3$ compound at both $^{115}In$ and $^{140}Ce$ sites. The calculations were performed within the density functional theory (DFT) using the augmented plane waves plus local…

Strongly Correlated Electrons · Physics 2009-11-13 S. Jalali Asadabadi

We have performed a photoemission spectroscopy (PES) study of CeM2Al10 (M = Fe, Ru, and Os) to directly observe the electronic structure involved in the unusual magnetic ordering. Soft X-ray resonant (SXR) PES provides spectroscopic…

The interaction between localized f and itinerant conduction electrons is crucial in the electronic properties of heavy fermion and valence fluctuating compounds. Using high-resolution angle-resolved photoemission spectroscopy, we…

A combination of the density functional theory and the single-site dynamical mean-field theory is employed to study the electronic structures of various allotropes of elemental curium (Cm-I, Cm-II, and Cm-III). We find that the 5$f$ valence…

Strongly Correlated Electrons · Physics 2020-05-20 Li Huang , Ruofan Chen , Haiyan Lu

Here we present the first large scale investigation of electronic properties and correlated magnetism in Ce-based compounds accompanied by a systematic study of the electronic structure and 4f-hybridization function of a large body of Ce…

A proper theoretical description of electronic structure of the 3d orbitals in the metal centers of functional metalorganics is a challenging problem. In this letter, we apply density functional theory and an exact diagonalization method in…

Measurements of the de Haas-van Alphen effect in CexLa1-xRhIn5 reveal that the Ce 4f electrons remain localized for all x, with the mass enhancement and progressive loss of one spin from the de Haas-van Alphen signal resulting from spin…

Strongly Correlated Electrons · Physics 2009-11-07 U. Alver , R. G. Goodrich , N. Harrison , Donavan Hall , E. C. Palm , T. P. Murphy , S. W. Tozer , P. G. Pagliuso , N. O. Moreno , J. L. Sarrao , Z. Fisk

The electronic structure of the rare-earth mononitrides LnN (where Ln=rare-earth), which are promising materials for future spintronics applications, is difficult to resolve experimentally due to a strong influence of defects on their…

Strongly Correlated Electrons · Physics 2022-07-12 Anna Galler , Leonid V. Pourovskii

To elucidate the localized-itinerant dual nature and orbital dependent correlations of Pu-5f valence electrons in plutonium borides (PuBx, x=1, 2, 6, 12), the electronic structures are throughout investigated by using the combination of…

Strongly Correlated Electrons · Physics 2023-09-21 Haiyan Lu , Li Huang