Kawamura, M., Takahashi, H., Masubuchi, S., Hashimoto, Y., Katsumoto, S., Hamaya, K., ...
Nuclear spins are polarized electrically in a breakdown regime of an odd-integer quantum Hall effect (QHE). Electron excitation to the upper Landau subband with the opposite spin polarity flips...
Electrical coherent control of nuclear spins in a breakdown regime of quantum Hall effect (2007)
Takahashi, H., Kawamura, M., Masubuchi, S., Hamaya, K., Machida, T., Hashimoto, Y., ...
Using a conventional Hall-bar geometry with a micro-metal strip on top of the surface, we demonstrate an electrical coherent control of nuclear spins in an AlGaAs/GaAs semiconductor heterostructure....
Kojima, E., Heroux, J. B., Shimano, R., Hashimoto, Y., Katsumoto, S., Iye, Y., ...
Time-resolved transmittance measurements performed on Ga$_{0.94}$Mn$_{0.06}$As in the vicinity of the Mn-induced mid-infrared absorption band are presented. Upon photo-excitation, a slow increase...
Ultrahigh-Field Hole Cyclotron Resonance Absorption in InMnAs Films (2004)
Matsuda, Y. H., Khodaparas, G. A., Zudov, M. A., Kono, J., Sun, Y., Kyrychenko, F. V., ...
We have carried out an ultrahigh-field cyclotron resonance study of p-type In1-xMnxAs films, with Mn composition x ranging from 0% to 2.5%, grown on GaAs by low-temperature molecular-beam epitaxy....
Transport in two-dimensional electron gas narrow channel with a magnetic field gradient (2003)
Hara, M., Endo, A., Katsumoto, S., Iye, Y.
We have investigated distinctive transport phenomena in two-dimensional electron gas (2DEG) narrow channel subjected to a large magnetic field gradient, a unique situation created in a...
Kojima, E., Shimano, R., Hashimoto, Y., Katsumoto, S., Iye, Y., Kuwata-Gonokami, M.
The dynamics of magnetization under femtosecond optical excitation is studied in a ferromagnetic semiconductor Ga_{0.94}Mn_{0.06}As with a time-resolved magneto-optical Kerr effect measurement with...