202 citations · 734 across the 12 of their papers we have counts for
12 papers
Observation of spin-conserving two-spinon continuum in the =1/2 antiferromagnetic chain system SrCuO using Cu -edge resonant inelastic x-ray scattering
Kenji Ishii, Kenji Tsutsui, Takayuki Kawamata +1
We report a Cu -edge resonant inelastic x-ray scattering (RIXS) study of spin excitations in the =1/2 antiferromagnetic chain system SrCuO. The spectral weight observ…
Observation of a dispersive charge mode in hole-doped cuprates using resonant inelastic x-ray scattering at the oxygen K edge
K. Ishii, T. Tohyama, S. Asano +13
We investigate electronic excitations in La2-x(Br,Sr)xCuO4 using resonant inelastic x-ray scattering (RIXS) at the oxygen K edge. RIXS spectra of the hole-doped cuprates show clear…
High-energy magnetic excitations in overdoped LaSrCuO studied by neutron and resonant inelastic X-ray scattering
S. Wakimoto, K. Ishii, H. Kimura +7
We have performed neutron inelastic scattering and resonant inelastic X-ray scattering (RIXS) at the Cu- edge to study high-energy magnetic excitations at energy transfers of…
Bipartite magnetic parent phases in the iron-oxypnictide superconductor
Masatoshi Hiraishi, Soshi Iimura, Kenji M. Kojima +19
High-temperature (high-) superconductivity appears as a consequence of the carrier-doping of an undoped parent compound exhibiting antiferromagnetic order; thereby, grou…
High-energy spin and charge excitations in electron-doped copper oxide superconductors
K. Ishii, M. Fujita, T. Sasaki +15
The evolution of electronic (spin and charge) excitations upon carrier doping is an extremely important issue in superconducting layered cuprates and the knowledge of its asymmetry…
Engineering spin-orbital magnetic insulator by tailoring superlattices
Jobu Matsuno, Kota Ihara, Shugen Yamamura +5
Novel interplay of spin-orbit coupling and electron correlations in complex Ir oxides recently emerged as a new paradigm for correlated electron physics. Because of a large spin-or…
Spin-orbit coupling induced semi-metallic state in the 1/3 hole doped hyper-kagome Na3Ir3O8
T. Takayama, A. Matsumoto, J. Nuss +5
The complex iridium oxide Na3Ir3O8 with a B-site ordered spinel structure was synthesized in single crystalline form, where the chiral hyper-kagome lattice of Ir atoms, as observed…
Resonant inelastic X-ray scattering study of intra-band charge excitations in hole-doped high-Tc cuprates
S. Wakimoto, K. Ishii, H. Kimura +10
We have performed resonant inelastic x-ray scattering (RIXS) near the Cu-K edge on cuprate superconductors La(2-x)Sr(x)CuO(4), La(2-x)Ba(x)CuO(4), La(2-x)Sr(x)Cu(1-y)Fe(y)O(4) and…
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…
Magnetic nature of the 500 meV peak in observed with resonant inelastic x-ray scattering at the Cu -edge
D. S. Ellis, Jungho Kim, J. P. Hill +9
We present a comprehensive study of the temperature and doping dependence of the 500 meV peak observed at in resonant inelastic x-ray scattering (RIXS) experiments…
Resonant inelastic x-ray scattering in electronically quasi-zero-dimensional CuB2O4
J. N. Hancock, G. Chabot-Couture, Y. Li +6
We explore the general phenomenology of resonant inelastic scattering (RIXS) using CuB2O4, a network of CuO4 plaquettes electronically isolated by B+3 ions. Spectra show a small nu…
Momentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd1.85Ce0.15CuO4: a RIXS Study
K. Ishii, K. Tsutsui, Y. Endoh +9
We report a resonant inelastic x-ray scattering (RIXS) study of charge excitations in the electron-doped high-Tc superconductor Nd1.85Ce0.15CuO4. The intraband and interband excita…