73 citations · 221 across the 6 of their papers we have counts for
6 papers
Correlation in transport coefficients of hole-doped CuRhO single crystals
K. Kurita, H. Sakabayashi, R. Okazaki
To clarify the origin of the nontrivial thermoelectric properties observed in the delafossite oxide CuRhO polycrystals, we have performed the systematic transport measurements…
Origin of the energy gap in the narrow-gap semiconductor FeSb2 revealed by high-pressure magnetotransport measurements
H. Takahashi, R. Okazaki, I. Terasaki +1
To elucidate an origin of the two energy gaps in the narrow-gap semiconductor FeSb2, we have investigated the effects of hydrostatic pressure on the resistivity, Hall resistance an…
Photo-Seebeck effect in tetragonal PbO single crystals
P. S. Mondal, R. Okazaki, H. Taniguchi +1
We report the observation of photo-Seebeck effect in tetragonal PbO crystals. The photo-induced carriers contribute to the transport phenomena, and consequently the electrical cond…
Current-Induced Gap Suppression in the Mott Insulator CaRuO
R. Okazaki, Y. Nishina, Y. Yasui +3
We present nonlinear conduction phenomena in the Mott insulator Ca2RuO4 investigated with a proper evaluation of self-heating effects. By utilizing a non-contact infrared thermomet…
Low-temperature magnetotransport of narrow-gap semiconductor FeSb2
H. Takahashi, R. Okazaki, Y. Yasui +1
We present a study of the magnetoresistance and Hall effect in the narrow-gap semiconductor FeSb2 at low temperatures. Both the electrical and Hall resistivities show unusual magne…
Optical Study of the Electronic Structure and Correlation Effects in K0.49RhO2
R. Okazaki, Y. Nishina, Y. Yasui +2
We study the optical properties of the layered rhodium oxide K0.49RhO2, which is isostructural to the thermoelectric material NaxCoO2. The optical conductivity shows broad interban…