237 citations · 851 across the 15 of their papers we have counts for
4 papers · 1 filter
Modulation Doping of a Mott Quantum Well by a Proximate Polar Discontinuity
T. Higuchi, Y. Hotta, T. Susaki +2
We present evidence for hole injection into LaAlO3/LaVO3/LaAlO3 quantum wells near a polar surface of LaAlO3 (001). As the surface is brought in proximity to the LaVO3 layer, an ex…
Remote hole-doping of Mott insulators on the nanometer scale
M. Takizawa, Y. Hotta, T. Susaki +12
At interfaces between polar and nonpolar perovskite oxides, an unusual electron-doping has been previously observed, due to electronic reconstructions. We report on remote hole-dop…
Negative Differential Resistance Induced by Mn Substitution at SrRuO3/Nb:SrTiO3 Schottky Interfaces
Y. Hikita, L. Fitting Kourkoutis, T. Susaki +3
We observed a strong modulation in the current-voltage characteristics of SrRuO/Nb:SrTiO Schottky junctions by Mn substitution in SrRuO, which induces a metal-insulator…
Vanishing Hall Coefficient in the Extreme Quantum Limit in Photocarrier-Doped SrTiO3
Y. Kozuka, T. Susaki, H. Y. Hwang
We have investigated the extreme quantum limit of photogenerated electrons in quantum paraelectric SrTiO3. This regime is distinct from conventional semiconductors, due to the larg…