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BaVS3 is a moderately correlated d-electron system with a rich phase diagram. To construct the corresponding minimal electronic model, one has to decide which d-states are occupied, and to which extent. The ARPES experiment presented here…

Strongly Correlated Electrons · Physics 2007-05-23 P. Fazekas , K. Penc , K. Radnoczi , N. Barisic , H. Berger , L. Forro , S. Mitrovic , A. Gauzzi , L. Demko , I. Kezsmarki , G. Mihaly

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 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…

In the series R2PdSi3, Nd2PdSi3 is an anomalous compound in the sense that it exhibits ferromagnetic order unlike other members in this family. The magnetic ordering temperature is also unusually high compared to the expected value for a…

We present a comprehensive angle-resolved photoemission study of the three-dimensional electronic structure of Ba(Fe1-xCox)2As2. The wide range of dopings covered by this study, x=0 to x=0.3, allows to extract systematic features of the…

Strongly Correlated Electrons · Physics 2013-05-29 V. Brouet , M. Marsi , B. Mansart , A. Nicolaou , A. Taleb-Ibrahimi , P. Le Fevre , F. Bertran , F. Rullier-Albenque , A. Forget , D. Colson

The electronic structures of the Heusler type compounds Fe$_{3-x}V$_x$Si in the concentration range between x = 0 and x = 1 have been probed by photoemission spectroscopy (PES). The observed shift of Si 2p core- level and the main valence…

We have performed x-ray photoemission spectroscopy on the system of noncentrosymmetric superconductor, Li$_2$(Pd$_x$Pt$_{1-x}$3)B. For Li$_2$Pt$_3$B, we found 2 major peaks with 2 other weak components, and the band calculations were in…

The electronic structure of the quasi-lowdimensional vanadium sulfide \bavs3 is investigated for the different phases above the magnetic ordering temperature. By means of density functional theory and its combination with dynamical-mean…

Strongly Correlated Electrons · Physics 2009-11-13 Frank Lechermann , Silke Biermann , Antoine Georges

We show that the layered-structure BaCuS$_2$ is a moderately correlated electron system in which the electronic structure of the CuS layer bears a resemblance to those in both cuprates and iron-based superconductors. Theoretical…

Superconductivity · Physics 2021-05-13 Yuhao Gu , Xianxin Wu , Kun Jiang , Jiangping Hu

We have investigated the electronic structures of newly discovered superconductor FeSe1-x by bulk-sensitive photoemission spectroscopy (PES). The large Fe 3d spectral weight is located in the vicinity of the Fermi level (EF) and it…

Superconductivity · Physics 2010-11-10 A. Yamasaki , S. Imada , K. Takase , T. Muro , Y. Kato , H. Kobori , A. Sugimura , N. Umeyama , H. Sato , Y. Hara , N. Miyakawa , S. I. Ikeda

Co$_{1/3}$NbS$_2$ is the magnetic intercalate of 2H-NbS$_2$ where electronic itinerant and magnetic properties strongly influence each other throughout the phase diagram. Here we report the first angle-resolved photoelectron spectroscopy…

The electronic structures of the ferromagnetic superconductors $\mathrm{UGe}_2$ and $\mathrm{UCoGe}$ in the paramagnetic phase were studied by angle-resolved photoelectron spectroscopy using soft X-rays ($h\nu =400-500$). The quasi-particle…

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

We investigate the three-dimensional electronic structure of the seminal charge-density-wave (CDW) material 2H-NbSe$_2$ by soft x-ray angle-resolved photoelectron spectroscopy and density-functional theory. Our results reveal the pronounced…

Superconductivity · Physics 2018-07-24 F. Weber , R. Hott , R. Heid , L. L. Lev , M. Caputo , T. Schmitt , V. N. Strocov

Layered transition metal dichalcogenides have rich phase diagram and they feature two dimensionality on numerous physical properties. Co1/3NbS2 is one of the newest members of this family where Co atoms are intercalated into the Van der…

The correlation-driven metal-insulator transition (MIT) of BaVS$_3$ was studied by polarized infrared spectroscopy. In the metallic state two types of electrons coexist at the Fermi energy: The quasi 1D metallic transport of $A_{1g}$…

Strongly Correlated Electrons · Physics 2014-01-15 I. Kezsmarki , G. Mihaly , R. Gaal , N. Barisic , A. Akrap , H. Berger , L. Forro , C. C. Homes , L. Mihaly

High resolution angle resolved photoemission measurements and band structure calculations are carried out to study the electronic structure of BaMnSb$_2$. All the observed bands are nearly linear that extend to a wide energy range. The…

We report hard x-ray photoemission spectroscopy measurements of the electronic structure of the prototypical correlated oxide SrxCa1-xVO3. By comparing spectra recorded at different excitation energies, we show that 2.2 keV photoelectrons…

Strongly Correlated Electrons · Physics 2015-04-22 J. Laverock , J. Kuyyalil , B. Chen , R. P. Singh , G. Balakrishnan , B. Karlin , J. C Woicik , K. E. Smith

Photoemission spectroscopy is used to investigate the electronic structure of the newly discovered iron-based superconductors LaFeAsO_{1-x}F_x and LaFePO_{1-x}F_x. Line shapes of the Fe 2p core-level spectra suggest an itinerant character…

Electronic structure of single crystalline Ba(Zn$_{0.875}$Mn$_{0.125}$)$_{2}$As$_{2}$, parent compound of the recently founded high-temperature ferromagnetic semiconductor, was studied by high-resolution photoemission spectroscopy (ARPES).…

Materials Science · Physics 2016-11-14 Fengfeng Zhu , W. X. Jiang , P. Li , Z. Q. Wang , H. Y. Man , Y. Y. Li , Canhua Liu , D. D. Guan , J. F. Jia , F. L. Ning , Weidong Luo , D. Qian
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