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Related papers: Fermi surface nesting and magnetic structure of Er…

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The Fermi surface of rare-earth tri-tellurides ({\it R}Te$_{3}$) is investigated in terms of the nesting driven charge-density wave formation using positron annihilation and first-principles LMTO calculations. Fermi surface nesting is…

Strongly Correlated Electrons · Physics 2009-11-11 J. Laverock , S. B. Dugdale , Zs. Major , M. A. Alam , N. Ru , I. R. Fisher , G. Santi , E. Bruno

For a single crystal of TmGa3, two-dimensional angular correlation of positron annihilation radiation spectra were measured and subjected to a deconvolution algorithm based on the Van Citter iterative method. The three-dimensional…

Materials Science · Physics 2007-05-23 M. Biasini , A. Czopnik , A. Jura , G. Kontrym-Sznajd , M. Monge

The electronic structure of layered Sr$_{3}$Ru$_{2}$O$_{7}$ in its orthorhombic structure is investigated using density functional calculations. The band structure near the Fermi energy, consists of Ru $% t_{2g}$ states hybridized with O…

Superconductivity · Physics 2009-10-31 D. J. Singh , I. I. Mazin

As a two-dimensional material with a hollow hexatomic ring structure, N\'eel-type anti-ferromagnetic (AFM) GdI3 can be used as a theoretical model to study the effect of electron doping. Based on first-principles calculations, we find that…

Materials Science · Physics 2023-05-11 Rong Guo , Yilv Guo , Yehui Zhang , Xiaoshu Gong , Tingbo Zhang , Xing Yu , Shijun Yuan , Jinlan Wang

The relativistic energy-band calculations have been carried out for UFeGa_{5}, UCoGa_{5} and URhGa_{5} under the assumption that 5f-electrons are itinerant. A hybridization between the U 5f state and Ga 4p state occurs in the vicinity of…

Strongly Correlated Electrons · Physics 2009-11-07 T. Maehira , M. Higuchi , A. Hasegawa

We present first-time measurements of the Fermi surface and low-energy electronic structure of intermetallic compounds Gd2PdSi3 and Tb2PdSi3 by means of angle-resolved photoelectron spectroscopy (ARPES). Both materials possess a flower-like…

The Fermi surface (FS) of ErTe3 is investigated using angle-resolved photoemission spectroscopy (ARPES). Low temperature measurements reveal two incommensurate charge density wave (CDW) gaps created by perpendicular FS nesting vectors. A…

Strongly Correlated Electrons · Physics 2008-09-18 R. G. Moore , V. Brouet , R. He , D. H. Lu , N. Ru , J. -H. Chu , I. R. Fisher , Z. -X. Shen

We have studied the low-lying electronic structure of a new ThCr$_2$Si$_2$-type superconductor KNi$_2$Se$_2$ with angle-resolved photoemission spectroscopy. Three bands intersect the Fermi level, forming complicated Fermi surface topology,…

Superconductivity · Physics 2015-06-23 Q. Fan , X. P. Shen , M. Y. Li , D. W. Shen , W. Li , X. M. Xie , Q. Q. Ge , Z. R. Ye , S. Y. Tan , X. H. Niu , B. P. Xie , D. L. Feng

The electronic structures of UX$_3$ (X=Al, Ga, and In) were studied by photoelectron spectroscopy to understand the relationship between their electronic structures and magnetic properties. The band structures and Fermi surfaces of UAl$_3$…

We present three-dimensional (3D) electron-positron momentum densities in Mg and Cd, reconstructed from 2D angular correlation of annihilation radiation data. By folding densities from the extended momentum space into the first Brillouin…

Materials Science · Physics 2009-11-07 A. Jura , G. Kontrym-Sznajd , M. Samsel-Czekala

Recent experiments have introduced a new concept for analyzing the photoemission spectra of correlated electrons -- the remnant Fermi surface (rFs), which can be measured even in systems which lack a conventional Fermi surface. Here, we…

Superconductivity · Physics 2009-10-31 C. Kusko , R. S. Markiewicz

The electronic bandstructure and the Fermi surfaces of ferromagnetic CeRh3B2 are calculated by using FLAPW and LSDA+U method. As assuming several kinds of the ground state to describe the 4f electronic state, we propose a fully orbital- and…

Strongly Correlated Electrons · Physics 2015-05-18 Kunihiko Yamauchi , Akira Yanase , Hisatomo Harima

The rare earth nickel borocarbides, with the generic formula $R$Ni$_{2}$B$_{2}$C, have recently been shown to display a rich variety of phenomena. Most striking has been the competition between, and even coexistence of, antiferromagnetism…

Condensed Matter · Physics 2009-10-31 S. B. Dugdale , M. A. Alam , I. Wilkinson , R. J. Hughes , I. R. Fisher , P. C. Canfield , G. Santi , T. Jarlborg

Band structures of pressure-induced CeNiGe3 and exotic BCS-like YNiGe3 superconductors have been calculated employing the full-potential local-orbital code. Both the local density approximation (LDA) and LDA+U treatment of the…

Superconductivity · Physics 2014-08-01 M. J. Winiarski , M. Samsel-Czekała

The Fermi surface topology of the shape-memory alloy Ni[0.62]Al[0.38] has been determined using Compton scattering. A large area of this Fermi surface can be made to nest with other areas by translation through a vector of ~ 0.18 [1,1,0]…

We have studied the three-dimensional shapes of the Fermi surfaces (FSs) of BaFe2(As1-xPx)2 (x=0.38), where superconductivity is induced by isovalent P substitution, by angle-resolved photoemission spectroscopy. Moderately strong electron…

The electronic band structure and Fermi surface of ZrTe_3 was precisely determined by linearly polarized angle-resolved photoelectron spectroscopy. Several bands and a large part of the Fermi surface are found to be split by 100-200 meV…

Strongly Correlated Electrons · Physics 2015-05-13 Moritz Hoesch , Xiaoyu Cui , Kenya Shimada , Corsin Battaglia , Shin-ichi Fujimori , Helmuth Berger

We show the three-dimensional electronic structure of the Kondo lattice CeIn3 using soft x-ray angle resolved photoemission spectroscopy in the paramagnetic state. For the first time, we have directly observed the three-dimensional topology…

Strongly Correlated Electrons · Physics 2016-09-20 Yun Zhang , Haiyan Lu , Xiegang Zhu , Shiyong Tan , Qin Liu , Qiuyun Chen , Wei Feng , Donghua Xie , Lizhu Luo , Yu Liu , Haifeng Song , Zhengjun Zhang , Xinchun Lai

First principles electronic structure calculations of A-15 type Nb$_3$X (X = Al, Ga, In, Ge and Sn) compounds are performed at ambient and high pressures. Mechanical stability is confirmed in all the compounds both at ambient as well as…

Materials Science · Physics 2016-06-03 P. V. Sreenivasa Reddy , V. Kanchana , G. Vaitheeswaran , P. Modak , Ashok K. Verma

The low-energy electronic structure of the itinerant metamagnet Sr3Ru2O7 is investigated by angle resolved photoemission and density functional calculations. We find well-defined quasiparticle bands with resolution limited line widths and…

Strongly Correlated Electrons · Physics 2009-11-13 A. Tamai , M. P. Allan , J. F. Mercure , W. Meevasana , R. Dunkel , D. H. Lu , R. S. Perry , A. P. Mackenzie , D. J. Singh , Z. -X. Shen , F. Baumberger
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