113 citations · 632 across the 15 of their papers we have counts for
10 papers · 1 filter
Polarization-analyzed resonant inelastic x-ray scattering of the orbital excitations in KCuF3
K. Ishii, S. Ishihara, Y. Murakami +13
We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of orbital excitations in KCuF3 . By performing the polarization analysis of the scattered photons, we disclo…
Momentum-resolved charge excitations in high-Tc cuprates studied by resonant inelastic x-ray scattering
K. Ishii, M. Hoesch, T. Inami +14
We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of high-Tc cuprates. Momentum-resolved charge excitations in the CuO2 plane are examined from parent Mott ins…
High field x-ray diffraction study on a magnetic-field-induced valence transition in YbInCu4
Y. H. Matsuda, T. Inami, K. Ohwada +6
We report the first high-field x-ray diffraction experiment using synchrotron x-rays and pulsed magnetic fields exceeding 30 T. Lattice deformation due to a magnetic-field-induced…
Mott gap excitations in twin-free YBa2Cu3O7-d (Tc = 93 K) studied by RIXS
K. Ishii, K. Tsutsui, Y. Endoh +9
Mott gap excitations in the high-Tc superconductor of the optimal doped YBa2Cu3O7-d (Tc = 93 K) have been studied by the resonant inelastic x-ray scattering method. Anisotropic spe…
Charge-Order Pattern of the Low-Temperature Phase of NaV2O5 Uniquely Determined by Resonant X-Ray Scattering from Monoclinic Single Domain
Kenji Ohwada, Yasuhiko Fujii, Yuya Katsuki +7
The present resonant x-ray scattering from each of monoclinically-split single domains of NaV2O5 has critically enhanced contrast between V4+ and V5+ ions strong enough to lead to…
Resonant inelastic x-ray scattering study of hole-doped manganites La1-xSrxMnO3 (x=0.2 and 0.4)
K. Ishii, T. Inami, K. Ohwada +8
Electronic excitations near the Fermi energy in the hole doped manganese oxides (La1-xSrxMnO3, x=0.2 and 0.4) have been elucidated by using the resonant inelastic x-ray scattering…
Low-Temperature Structure of the Quarter-Filled Ladder Compound alpha'-NaV2O5
Hiroshi Sawa, Emi Ninomiya, Tetsuo Ohama +7
The low-temperature (LT) superstructure of -NaVO was determined by synchrotron radiation x-ray diffraction. Below the phase transition temperature associated with atomi…
Neutron Diffraction Study of the Irreversible R-MA-MC Phase Transition in Single Crystal Pb[(Zn1/3Nb2/3)1-xTix]O3
Kenji Ohwada, Kazuma Hirota, Paul W. Rehrig +5
Single crystals of the relaxor PZN-xPT display an enormously strong piezoelectric character. Recent x-ray scattering studies have revealed novel electric-field induced phase transi…
The "devil's staircase" type phase transition in NaV2O5 under high pressure
K. Ohwada, Y. Fujii, N. Takesue +12
The "devil's staircase" type phase transition in the quarter-filled spin-ladder compound NaV2O5 has been discovered at low temperature and high pressure by synchrotron radiation x-…
X-ray Anomalous Scattering Study of a Charge-Ordered State in NaV2O5
H. Nakao, K. Ohwada, N. Takesue +9
Charge ordering of V4+ and V5+ in NaV2O5 has been studied by an X-ray diffraction technique using anomalous scattering near a vanadium K-absorption edge to critically enhance a con…