175 citations · 510 across the 15 of their papers we have counts for
15 papers
Electronic Structure of a Delafossite Oxide CuAlO in Comparison with CuCrO
Kenta Takahashi, Ryo Kato, Mario Okawa +6
We investigated the electronic structure of a delafossite oxide CuAlO in comparison with CuCrO, using vacuum ultraviolet (VUV) and hard x-ray (HX) photoemission spectroscop…
Direct observation of multiple conduction-band minima in high-performance thermoelectric SnSe
Mario Okawa, Yuka Akabane, Mizuki Maeda +14
We report time- and angle-resolved photoemission spectroscopy on SnSe which currently attracts great interest due to its extremely high thermoelectric performance. Laser-assisted p…
Emergent photovoltage on SmB6 surface upon bulk-gap evolution revealed by pump-and-probe photoemission spectroscopy
Y. Ishida, T. Otsu, T. Shimada +5
Recent studies suggest that an exemplary Kondo insulator SmB6 belongs to a new class of topological insulators (TIs), in which non-trivial spin-polarized metallic states emerge on…
Laboratory hard X-ray photoelectron spectroscopy of LaSrMnO
Tomoko Hishida, Masaaki Kobata, Eiji Ikenaga +5
A laboratory hard X-ray photoelectron spectroscopy (HXPS) system equipped with a monochromatic Cr K ( eV) X-ray source was applied to an investigation of the core-le…
Hybridization gap formation in the Kondo insulator YbB observed using time-resolved photoemission spectroscopy
M. Okawa, Y. Ishida, M. Takahashi +5
A detailed low-energy electronic structure of a Kondo insulator YbB was revealed by a synergetic combination of ultrahigh-resolution laser photoemission spectroscopy (PES) a…
Empirical relationship between x-ray photoemission spectra and electrical conductivity in a colossal magnetoresistive manganite La_{1-x}Sr_{x}MnO_{3}
T. Hishida, K. Ohbayashi, M. Kobata +5
By using laboratory x-ray photoemission spectroscopy (XPS) and hard x-ray photoemission spectroscopy (HX-PES) at a synchrotron facility, we report an empirical semi-quantitative re…