77 citations · 200 across the 6 of their papers we have counts for
4 papers · 1 filter
Time-resolved photoemission apparatus achieving sub-20-meV energy resolution and high stability
Y. Ishida, T. Togashi, K. Yamamoto +5
The paper describes a time- and angle-resolved photoemission apparatus consisting of a hemispherical analyzer and a pulsed laser source. We demonstrate 1.48-eV pump and 5.90-eV pro…
Non-thermal hot electrons ultrafastly generating hot optical phonons in graphite
Y. Ishida, T. Togashi, K. Yamamoto +6
Ultrafast dynamics of graphite is investigated by time-resolved photoemission spectroscopy. We observe spectral features of direct photoexcitations, non-thermal electron distributi…
Epitaxial Growth of a Full-Heusler Alloy CoFeSi on Silicon by Low-Temperature Molecular Beam Epitaxy
S. Yamada, K. Yamamoto, K. Ueda +4
For electrical spin injection and detection of spin-polarized electrons in silicon, we explore highly epitaxial growth of ferromagnetic full-Heusler-alloy Co2FeSi thin films on sil…
Electronic Structures of MgB{} under Uniaxial and Hydrostatic Compression
K. Kobayashi, K. Yamamoto
Electronic and lattice properties of MgB{} under uniaxial and hydrostatic compression are calculated. Lattice properties are optimized automatically by using the first-principl…