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Related papers: Correlation effect in Sr$_{1-x}$La$_x$RuO$_3$ stud…

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We have measured soft x-ray photoemission and O 1{\it s} x-ray absorption spectra of Ca$_{1-x}$Sr$_x$RuO$_3$ thin films prepared {\it in situ}. The coherent and incoherent parts have been identified in the bulk component of the…

Strongly Correlated Electrons · Physics 2009-11-10 M. Takizawa , D. Toyota , H. Wadati , A. Chikamatsu , H. Kumigashira , A. Fujimori , M. Oshima , Z. Fang , M. Lippmaa , M. Kawasaki , H. Koinuma

The evolution of electron correlation in Sr$_{x}$Ca$_{1-x}$VO$_3$ has been studied using a combination of bulk-sensitive resonant soft x-ray emission spectroscopy (RXES), surface-sensitive photoemission spectroscopy (PES), and ab initio…

Strongly Correlated Electrons · Physics 2013-07-25 J. Laverock , B. Chen , K. E. Smith , R. P. Singh , G. Balakrishnan , M. Gu , J. W. Lu , S. A. Wolf , R. M. Qiao , W. Yang , J. Adell

We report a systematic study of electron doping of Sr2RuO4 by non-isovalent substitution of La^(3+) for Sr^(2+). Using a combination of de Haas-van Alphen oscillations, specific heat, and resistivity measurements, we show that electron…

Strongly Correlated Electrons · Physics 2009-11-10 N. Kikugawa , A. P. Mackenzie , C. Bergemann , R. A. Borzi , S. A. Grigera , Y. Maeno

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

We have investigated the electronic structure of electron-doped Sr$_{2-x}$La$_x$FeMoO$_6$ ($x$=0.0 and 0.2) by photoemission spectroscopy and band-structure calculations within the local-density approximation+$U$ (LDA+$U$) scheme. A…

Strongly Correlated Electrons · Physics 2007-05-23 T. Saitoh , M. Nakatake , H. Nakajima , O. Morimoto , A. Kakizaki , Sh. Xu , Y. Moritomo , N. Hamada , Y. Aiura

We have studied the electronic structure of epitaxially grown thin films of La$_{1-x}$Sr$_x$FeO$_3$ by {\it in-situ} photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS) measurements. The Fe 2$p$ and valence-band PES…

Strongly Correlated Electrons · Physics 2007-05-23 H. Wadati , D. Kobayashi , H. Kumigashira , K. Okazaki , T. Mizokawa , A. Fujimori , K. Horiba , M. Oshima , N. Hamada , M. Lippmaa , M. Kawasaki , H. Koinuma

We have investigated change in the electronic structures of atomically-controlled La$_{1-x}$Sr$_x$MnO$_3$ (LSMO) thin films as a function of hole-doping level ($x$) in terms of {\it in situ} photoemission spectroscopy (PES) and x-ray…

Strongly Correlated Electrons · Physics 2009-11-10 K. Horiba , A. Chikamatsu , H. Kumigashira , M. Oshima , N. Nakagawa , M. Lippmaa , K. Ono , M. Kawasaki , H. Koinuma

Electron correlations play a dominant role in the charge dynamics of the cuprates. We use resonant inelastic x-ray scattering (RIXS) to track the doping dependence of the collective charge excitations in electron doped…

We characterize the electron doping evolution of (Sr$_{1-x}$La$_x$)$_3$Ir$_2$O$_7$ by means of angle-resolved photoemission. Concomitant with the metal insulator transition around $x\approx0.05$ we find the emergence of coherent…

We report here on the electronic structure of electron-doped half-metallic ferromagnetic perovskites such Sr$_{2-x}$La$_x$FeMoO$_6$ ($x$=0-0.6) as obtained from high-resolved valence-band photoemission spectroscopy (PES). By comparing the…

Strongly Correlated Electrons · Physics 2009-11-10 J. Navarro , J. Fontcuberta , M. Izquierdo , J. Avila , M. C. Asensio

We investigate the electronic structure of (Sr$_{1-x}$La$_x$)$_2$RhO$_4$ using a combination of the density functional and dynamical mean-field theories. Unlike the earlier local density approximation plus Hubbard $U$ (LDA+U) studies, we…

Strongly Correlated Electrons · Physics 2015-03-05 Kyo-Hoon Ahn , Kwan-Woo Lee , Jan Kunes

The electronic structure of the La$_{2-x}$Sr$_x$CuO$_4$ (LSCO) system has been studied by angle-resolved photoemission spectroscopy (ARPES). We report on the evolution of the Fermi surface, the superconducting gap and the band dispersion…

Superconductivity · Physics 2009-10-31 A. Ino , C. Kim , M. Nakamura , T. Yoshida , T. Mizokawa , A. Fujimori , Z. -X. Shen , T. Kakeshita , H. Eisaki , S. Uchida

We investigate the role of electron correlation and disorder on the electronic structure of layered nickelate (La$_{0.5}$Sr$_{0.5}$)$_2$NiO$_4$ using core level and valence band photoemission spectroscopy in conjunction with density…

Strongly Correlated Electrons · Physics 2024-04-26 Sakshi Bansal , R. K. Maurya , Asif Ali , B. H. Reddy , Ravi Shankar Singh

We have measured the temperature dependence of the photoemission and x-ray absorption spectra of La$_{1-x}$Sr$_x$FeO$_3$ (LSFO) epitaxial thin films with $x=0.67$, where charge disproportionation ($3{Fe}^{3.67+}\to 2{Fe}^{3+}+ {Fe}^{5+}$)…

Strongly Correlated Electrons · Physics 2007-05-23 H. Wadati , A. Chikamatsu , R. Hashimoto , M. Takizawa , H. Kumigashira , A. Fujimori , M. Oshima , M. Lippmaa , M. Kawasaki , H. Koinuma

We investigate the electronic structure of high-quality single-crystal LaNiO$_3$ (LNO) thin films using in situ photoemission spectroscopy (PES). The in situ high-resolution soft x-ray PES measurements on epitaxial thin films reveal the…

Strongly Correlated Electrons · Physics 2015-04-30 K. Horiba , R. Eguchi , M. Taguchi , A. Chainani , A. Kikkawa , Y. Senba , H. Ohashi , S. Shin

We have performed an {\it in-situ} photoemission study of Pr_{1-x}Ca_xMnO_3 (PCMO) thin films grown on LaAlO_3 (001) substrates and observed the effect of epitaxial strain on the electronic structure. We found that the chemical potential…

Strongly Correlated Electrons · Physics 2008-01-17 H. Wadati , A. Maniwa , A. Chikamatsu , I. Ohkubo , H. Kumigashira , M. Oshima , A. Fujimori , M. Lippmaa , M. Kawasaki , H. Koinuma

Polarization-controlled synchrotron radiation was used to map the electronic structure of buried conducting interfaces of LaAlO$_3$/SrTiO$_3$ in a resonant angle-resolved photoemission experiment. A strong dependence on the light…

We have investigated the electronic structures of recently discovered superconductor FeSe by soft-x-ray and hard-x-ray photoemission spectroscopy with high bulk sensitivity. The large Fe 3d spectral weight is located in the vicinity of the…

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…

We study the changes in the Fermi surface with electron doping in the LaFeAsO$_{1-x}$F$_x$ superconductors with density-functional supercell calculations using the linearized augmented planewave (LAPW) method. The supercell calculations…

Materials Science · Physics 2009-11-13 P. Larson , S. Satpathy
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