activity
20152025
most citedIntrinsic high electrical conductivity of stoichiometric SrNbO3 epitaxial thin films

84 citations · 109 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.mtrl-sci2025★ 3 cited

Rocksalt rare-earth monoxides as electronic and magnetic materials

Tomoteru Fukumura, Satoshi Sasaki, Masamichi Negishi +1

Stable binary rare earth (RE) oxides are usually trivalent RE ion sesquioxides (RE2O3), that are highly insulating and either nonmagnetic or antiferromagnetic. On the other hand, r…

cond-mat.mtrl-sci2023★ 3 cited

Temperature dependent optical properties of -GaO thin films

T. Makino, S. Yusa, D. Oka +1

We determined the complex dielectric functions of -GaO using optical transmittance and reflectance spectroscopies at temperatures from 10 K to room temperature…

cond-mat.mtrl-sci2023★ 1 cited

Photoreflectance spectroscopy of BiOCl epitaxial thin films

T. Nishiwaki, T. Makino, Z. Sun +2

We have observed a new optical transition in the photoreflectance spectra of indirect-gap BiOCl thin films, which were grown on SrTiO substrates. The position of this transitio…

cond-mat.str-el2020★ 6 cited

Hard and soft x-ray photoemission spectroscopy study of the new Kondo system SmO thin film

Shoya Sakamoto, Kenichi Kaminaga, Daichi Oka +15

SmO thin film is a new Kondo system showing a resistivity upturn around 10 K and was theoretically proposed to have a topologically nontrivial band structure. We have performed har…

cond-mat.supr-con2020★ 12 cited

Tetragonality induced superconductivity in anti-ThCrSi-type OBi ( = rare earth) with Bi square net

Ryosuke Sei, Hideyuki Kawasoko, Kota Matsumoto +12

We report a series of layered superconductors, anti-ThCrSi-type OBi ( = rare earth), composed of electrically conductive Bi square nets and magnetic insulatin…

cond-mat.mtrl-sci2015★ 84 cited

Intrinsic high electrical conductivity of stoichiometric SrNbO3 epitaxial thin films

Daichi Oka, Yasushi Hirose, Shoichiro Nakao +2

SrVO3 and SrNbO3 are perovskite-type transition-metal oxides with the same d1 electronic configuration. Although SrNbO3 (4d1) has a larger d orbital than SrVO3 (3d1), the reported…