Optical probe of electrostatic doping in an n-type Mott insulator

M. Nakamura, A. Sawa, H. Sato +3

Electrostatic doping into an $n$-type Mott insulator Sm${}_2$CuO${}_4$ has been successfully achieved with use of the heterojunction with an $n$-type band semiconductor Nb-doped Sr…