157 citations · 545 across the 11 of their papers we have counts for
11 papers
Cluster-based Haldane state in edge-shared tetrahedral spin-cluster chain: Fedotovite KCuO(SO)
M. Fujihala, T. Sugimoto, T. Tohyama +13
Fedotovite KCuO(SO) is a candidate of new quantum spin systems, in which the edge-shared tetrahedral (EST) spin-clusters consisting of Cu are connected by we…
Three superconducting phases with different categories of pairing in hole- and electron-doped LaFeAsPO
S. Miyasaka, M. Uekubo, H. Tsuji +8
The phase diagram of LaFeAsPO system has been extensively studied through hole- and electron-doping as well as As/P-substitution. It has been revealed that there are th…
The change of electronic state and crystal structure by post-annealing in superconducting SrFe2(As0.65P0.35)2
T. Kobayashi, S. Miyasaka, S. Tajima +6
We investigated the annealing effects on the physical properties of SrFe(AsP) (). The superconducting transition temperature () increased from 26 K…
Pseudogap-related charge dynamics in layered-nickelate R2-xSrxNiO4 (x sim 1)
M. Uchida, Y. Yamasaki, Y. Kaneko +5
Charge dynamics and its critical behavior are investigated near the metal-insulator transition of layered-nickelate R2-xSrxNiO4 (R=Nd, Eu). The polarized x-ray absorption spectrosc…
Effect of cation size variance on spin and orbital order in Eu(LaY)VO
R. Fukuta, S. Miyasaka, K. Hemmi +8
We have investigated the -ion ( = rare earth or Y) size variance effect on spin/orbital order in Eu(LaY)VO. The size variance disturbs o…
Electrons doped in cubic perovskite SrMnO3: isotropic metal versus chainlike ordering of Jahn-Teller polarons
H. Sakai, S. Ishiwata, D. Okuyama +5
Single crystals of electron-doped SrMnO3 with a cubic perovskite structure have been systematically investigated as the most canonical (orbital-degenerate) double-exchange system,…
A Resonant X-ray Scattering Study of Octahedral Tilt Ordering in LaMnO and PrCaMnO
M. v. Zimmermann, C. S. Nelson, Y. -J. Kim +12
We report an x-ray scattering study of octahedral tilt ordering in the manganite series PrCaMnO with x=0.4 and 0.25 and in LaMnO. The sensitivity to tilt orderi…
Observation of the antiferroquadrupolar order in DyB2C2 by resonant x-ray scattering
T. Matsumura, N. Oumi, K. Hirota +6
We have investigated the antiferroquadrupolar(AFQ) order in DyBC by resonant x-ray scattering. X-rays with energies near the absorption edge of Dy were employed. Supe…
X-ray Resonant Scattering Studies of Orbital and Charge Ordering in PrCaMnO
M. v. Zimmermann, C. S. Nelson, J. P. Hill +10
We present the results of a systematic x-ray scattering study of the charge and orbital ordering in the manganite series PrCaMnO with =0.25, 0.4 and 0.5. The tem…
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…
Direct Observation of Antiferro-Quadrupolar Ordering - Resonant X-ray Scattering Study of DyB2C2
K. Hirota, N. Oumi, T. Matsumura +4
Antiferroquadrupolar (AFQ) ordering has been conjectured in several rare-earth compounds to explain their anomalous magnetic properties. No direct evidences for AFQ ordering, howev…