129 citations · 234 across the 5 of their papers we have counts for
5 papers
Low-Energy Optical Phonon Modes in the Caged Compound LaRu2Zn20
K. Wakiya, T. Onimaru, S. Tsutsui +7
The caged compound LaRu2Zn20 exhibits a structural transition at TS =150 K, whose driving mechanism remains elusive. We have investigated atomic dynamics by the measurements of spe…
Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd2Os2O7
J. Yamaura, K. Ohgushi, H. Ohsumi +11
Cd2Os2O7 shows a peculiar metal-insulator transition at 227 K with magnetic ordering in a frustrated pyrochlore lattice, but its magnetic structure in the ordered state and the tra…
Optical conductivity of rattling phonons in type-I clathrate BaGaGe
T. Mori, S. Goshima, K. Iwamoto +9
A series of infrared-active optical phonons have been detected in type-I clathrate BaGaGe by terahertz time-domain spectroscopy. The conductivity spectra with the…
Pressure induced Superconductor-Insulator transition in the spinel compound CuRh2S4
M. Ito, J. Hori, H. Kurisaki +8
We performed resistivity measurements in CuRhS under quasi-hydrostatic pressure of up to 8.0 GPa, and found a pressure induced superconductor-insulator (SI) transition.…
Micro-Raman scattering investigation of MgB2 and RB2 (R=Al, Mn, Nb and Ti)
N. Ogita, T. Kariya, K. Hiraoka +5
Phonon spectra have been investigated by micro-Raman scattering from 290 to 20K. New peaks at 500 and 674 cm-1 appear below 250K in MgB2. These peaks are explained by the Fermi res…