101 citations · 206 across the 8 of their papers we have counts for
5 papers · 1 filter
X-ray Anomalous Scattering of Diluted Magnetic Oxide Semiconductors: Possible Evidence of Lattice Deformation for High Temperature Ferromagnetism
Takeshi Matsumura, Daisuke Okuyama, Shinya Niioka +7
We have examined whether the Co ions crystallographically substitute on the Ti sites in rutile and anatase Ti_{1-x}_{x}_{2-delta}$ thin films that exhibit room-temperature f…
A scaling relation of anomalous Hall effect in ferromagnetic semiconductors and metals
Tomoteru Fukumura, Hidemi Toyosaki, Kazunori Ueno +3
A scaling relation of the anomalous Hall effect recently found in a ferromagnetic semiconductor (Ti,Co)O_2_ is compared with those of various ferromagnetic semiconductors and metal…
Gradual Disappearance of the Fermi Surface near the Metal-Insulator Transition in LaSrMnO
A. Chikamatsu, H. Wadati, H. Kumigashira +6
We report the first observation of changes in the electronic structure of LaSrMnO (LSMO) across the filling-control metal-insulator (MI) transition by means of…
Optical probe of electrostatic doping in an n-type Mott insulator
M. Nakamura, A. Sawa, H. Sato +3
Electrostatic doping into an -type Mott insulator SmCuO has been successfully achieved with use of the heterojunction with an -type band semiconductor Nb-doped Sr…
Anomalous Hall effect in anatase Ti1-xCoxO2 at low temperature regime
Kazunori Ueno, Tomoteru Fukumura, Hidemi Toyosaki +2
Anomalous Hall effect (AHE) of a ferromagnetic semiconductor anatase \cotio thin film is studied from 10K to 300K. Magnetic field dependence of anomalous Hall resistance is coincid…