activity
20162023
most citedElectron effective mass and mobility limits in degenerate perovskite stannate BaSnO

64 citations · 183 across the 5 of their papers we have counts for

collaborators

5 papers

cond-mat.mtrl-sci2023★ 2 cited

Local electronic structure of dilute hydrogen in -GaO probed by muons

M. Hiraishi, H. Okabe, A. Koda +6

The local electronic structure of muons (Mu) as dilute pseudo-hydrogen in single-crystalline -GaO has been studied by the muon spin rotation/relaxation (SR). High-pre…

cond-mat.mtrl-sci2020★ 62 cited

Shallow Valence Band of Rutile GeO and P-type Doping

Christian A. Niedermeier, Keisuke Ide, Takayoshi Katase +2

GeO has an -quartz-type crystal structure with a very wide fundamental band gap of 6.6 eV and is a good insulator. Here we find that the stable rutile-GeO polymorph with…

cond-mat.mtrl-sci2019★ 24 cited

Electronic structure of interstitial hydrogen in In-Ga-Zn-O semiconductor simulated by muon

K. M. Kojima, M. Hiraishi, H. Okabe +7

We report on the local electronic structure of interstitial muon (Mu) as pseudo-hydrogen in In-Ga-Zn oxide (IGZO) semiconductor studied by muon spin rotation/relaxation (SR) exp…

cond-mat.mtrl-sci2016★ 31 cited

Phonon scattering limited mobility in the representative cubic perovskite semiconductors SrGeO, BaSnO and SrTiO

Christian A. Niedermeier, Yu Kumagai, Keisuke Ide +4

Cubic perovskite oxides are emerging high-mobility transparent conducting oxides (TCOs), but Ge-based TCOs had not been known until the discovery of metastable cubic SrGeO. $0.…

cond-mat.mtrl-sci2016★ 64 cited

Electron effective mass and mobility limits in degenerate perovskite stannate BaSnO

Christian A. Niedermeier, Sneha Rhode, Keisuke Ide +4

The high room temperature mobility and the electron effective mass in BaSnO are investigated in depth by evaluation of the free carrier absorption observed in infrared spectra…