135 citations · 1.5k across the 66 of their papers we have counts for
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Correlated Ligand Electrons in the Transition-Metal Oxide SrRuO
Yuichi Seki, Yuki K. Wakabayashi, Takahito Takeda +9
In transition-metal compounds, the transition-metal d electrons play an important role in their physical properties; however, the effects of the electron correlation between the li…
Impact of the Ce states in the electronic structure of the intermediate-valence superconductor CeIr
Shin-ichi Fujimori, Ikuto Kawasaki, Yukiharu Takeda +10
The electronic structure of the -based superconductor was studied by photoelectron spectroscopy. The energy distribution of the states were re…
Isotropic orbital magnetic moments in magnetically anisotropic SrRuO3 films
Yuki K. Wakabayashi, Masaki Kobayashi, Yukiharu Takeda +6
Epitaxially strained SrRuO3 films have been a model system for understanding the magnetic anisotropy in metallic oxides. In this paper, we investigate the anisotropy of the Ru 4d a…
Electronic Structure of ThPdAl: an impact of the U states in the electronic structure of UPdAl
Shin-ichi Fujimori, Yukiharu Takeda, Hiroshi Yamagami +3
The electronic structure of ThPdAl, which is isostructural to the heavy fermion superconductor UPdAl, was investigated by photoelectron spectroscopy. The band struc…
Electronic structure of URuSi in paramagnetic phase: Three-dimensional angle resolved photoelectron spectroscopy study
Shin-ichi Fujimori, Yukiharu Takeda, Hiroshi Yamagami +2
The three-dimensional (3D) electronic structure of the hidden order compound URuSi in a paramagnetic phase was revealed using a 3D angle-resolved photoelectron spectroscopy…
Itinerant ferromagnetism mediated by giant spin polarization of metallic ligand band in van der Waals magnet Fe5GeTe2
K. Yamagami, Y. Fujisawa, B. Driesen +15
We investigate near-Fermi-energy (EF) element-specific electronic and spin states of ferromagnetic van der Waals (vdW) metal Fe5GeTe2. The soft x-ray angle-resolved photoemission s…
Core-Level Photoelectron Spectroscopy Study of UTe
Shin-ichi Fujimori, Ikuto Kawasaki, Yukiharu Takeda +4
The valence state of UTe was studied by core-level photoelectron spectroscopy. The main peak position of the U core-level spectrum of UTe coincides with that of UB…
Electronic Structure of UTe Studied by Photoelectron Spectroscopy
Shin-ichi Fujimori, Ikuto Kawasaki, Yukiharu Takeda +4
The electronic structure of the unconventional superconductor UTe was studied by resonant photoelectron spectroscopy (RPES) and angle-resolved photoelectron spectroscopy (ARPES…
Magnetization process of the insulating ferromagnetic semiconductor (Al,Fe)Sb
Shoya Sakamoto, Le Duc Anh, Pham Nam Hai +12
We have studied the magnetization process of the new insulating ferromagnetic semiconductor (Al,Fe)Sb by means of x-ray magnetic circular dichroism. For an optimally doped sample w…
Manifestation of electron correlation effect in states of uranium compounds revealed by resonant photoemission spectroscopy
Shin-ichi Fujimori, Masaharu Kobata, Yukiharu Takeda +7
We have elucidated the nature of the electron correlation effect in uranium compounds by imaging the partial density of states (pDOS) of typical itinerant, localize…
Electronic structure of the novel high- ferromagnetic semiconductor (Ga,Fe)Sb: x-ray magnetic circular dichroism and resonance photoemission spectroscopy studies
Shoya Sakamoto, Nguyen Thanh Tu, Yukiharu Takeda +11
The electronic structure and the magnetism of the novel ferromagnetic semiconductor (Ga,Fe)Sb, whose Curie temperature can exceed room temperature, were investigated by…
Local Magnetic States of the Weakly Ferromagnetic Iron-Based Superconductor SrVFeAsO Studied by X-ray Magnetic Circular Dichroism
Masafumi Horio, Yukiharu Takeda, Hiromasa Namiki +10
We have performed x-ray magnetic circular dichroism (XMCD) measurements on the iron-based superconductor SrVFeAsO to study the origin of weak ferromagnetism (WFM) repor…
Electronic structures of UX (X=Al, Ga, and In) studied by photoelectron spectroscopy
Shin-ichi Fujimori, Masaaki Kobata, Yukiharu Takeda +7
The electronic structures of UX (X=Al, Ga, and In) were studied by photoelectron spectroscopy to understand the relationship between their electronic structures and magnetic pr…
Electronic structure of ThRu2Si2 studied by angle-resolved photoelectron spectroscopy: Elucidating the contribution of U 5f states in URu2Si2
Shin-ichi Fujimori, Masaaki Kobata, Yukiharu Takeda +8
The electronic structure of ThRu2Si2 was studied by angle-resolved photoelectron spectroscopy (ARPES) with incident photon energies of hn=655-745 eV. Detailed band structure and th…
Electronic Structure and Magnetic Properties of Half-metallic Ferrimagnet MnVAl Probed by Soft X-ray Spectroscopies
K. Nagai, H. Fujiwara, H. Aratani +15
We have studied the electronic structure of ferrimagnetic Mn2VAl single crystal by means of soft X-ray absorption spectroscopy (XAS), X-ray absorption magnetic circular dichroism (…
Electronic structures of ferromagnetic superconductors and studied by angle-resolved photoelectron spectroscopy
Shin-ichi Fujimori, Takuo Ohkochi, Ikuto Kawasaki +9
The electronic structures of the ferromagnetic superconductors and in the paramagnetic phase were studied by angle-resolved photoelectron spectros…
Thickness-dependent magnetic properties and strain-induced orbital magnetic moment in SrRuO3 thin films
K. Ishigami, K. Yoshimatsu, D. Toyota +16
Thin films of the ferromagnetic metal SrRuO3 (SRO) show a varying easy magnetization axis depending on the epitaxial strain and undergo a metal-to-insulator transition with decreas…
Gradual localization of 5f states in orthorhombic UTX ferromagnets - polarized neutron diffraction study of Ru substituted UCoGe
Michal Valiska, Jiri Pospisil, Anne Stunault +13
We report on a microscopic study of the evolution of ferromagnetism in the Ru substituted ferromagnetic superconductor (FM SC) UCoGe crystallizing in the orthorhombic TiNiSi-type s…
Polarized neutron diffraction and X-ray magnetic circular dichroism study of Ru doped UCoGe
Michal Valiska, Jiri Pospisil, Anne Stunault +12
We report on microscopic study of the ferromagnetism enhancement in the Ru doped ferromagnetic superconductor (FM SC) UCoGe. For that purpose, two single crystals with composition…
Itinerant magnetism in URhGe revealed by angle resolved photoelectron spectroscopy
Shin-ichi Fujimori, Ikuto Kawasaki, Akira Yasui +8
The electronic structure of the ferromagnetic superconductor URhGe in the paramagnetic phase has been studied by angle-resolved photoelectron spectroscopy using soft x rays (hn=595…
Thickness-dependent ferromagnetic metal to paramagnetic insulator transition in LaSrMnO thin films studied by x-ray magnetic circular dichroism
Goro Shibata, Kohei Yoshimatsu, Enju Sakai +14
Metallic transition-metal oxides undergo a metal-to-insulator transition (MIT) as the film thickness decreases across a ritical thickness of several monolayers (MLs), but its drivi…
Electronic Structure of Heavy Fermion Uranium Compounds Studied by Core-Level Photoelectron Spectroscopy
Shin-ichi Fujimori, Takuo Ohkochi, Ikuto Kawasaki +14
High-energy-resolution core-level and valence-band photoelectron spectroscopic studies were performed for the heavy Fermion uranium compounds UGe2, UCoGe, URhGe, URu2Si2, UNi2Al3,…
4f-derived Fermi Surfaces of CeRu2(Si[1-x]Ge[x])2 near the Quantum Critical Point: Resonant Soft X-ray ARPES Study
T. Okane, T. Ohkochi, Y. Takeda +10
Angle-resolved photoelectron spectroscopy in the Ce 3d-4f excitation region was measured for the paramagnetic state of CeRu2Si2, CeRu2(Si0.82Ge0.18)2, and LaRu2Si2 to investigate t…
Soft x-ray magnetic circular dichroism study of Ca_1-xSr_xRuO_3 across the ferromagnetic quantum phase transition
J. Okamoto, T. Okane, Y. Saitoh +10
Ca_1-xSr_xRuO_3, which is ferromagnetic for Sr concentration x > 0.3, has been studied by x-ray magnetic circular dichroism (XMCD) in Ru 3p and O 1s core-level x-ray absorption. XM…