Sumio Ishihara

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1. Octupole order in Ce 0.7 La 0.3 B 6 probed by resonant X-ray scattering The azimuthal angle dependence observed in the resonant X-ray scattering in phase IV of Ce 0.7 La 0.3 B 6 is analyzed theoretically[1]. It is shown that the peculiar angle dependence observed in the E2 channel is consistent with the Γ 5u-type octupole order with principal axis along(More)
In strongly correlated electron systems, enhanced fluctuations in the proximity of the ordered states of electronic degrees of freedom often induce anomalous electronic properties such as unconventional superconductivity. While spin fluctuations in the energy-momentum space have been studied widely using inelastic neutron scattering, other degrees of(More)
Dynamical localization, that is, reduction of the intersite electronic transfer integral t by an alternating electric field, E(ω), is a promising strategy for controlling strongly correlated systems with a competing energy balance between t and the Coulomb repulsion energy. Here we describe a charge localization induced by the 9.3 MV cm(-1) instantaneous(More)
1. Consequences of multipole orders in CeB 6 and Ce x La 1−x B 6 A minimal model for multipole orders in CeB 6 is proposed and calculated by mean field theory [1, 2]. Both quadrupole and magnetic ordered phases can be reproduced with one model. From the mean field result, degeneracy of quadrupole order parameter and strong spin-orbit coupling cause(More)
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