Understanding the nature of electronic effective mass in double-doped SrTiO${}_3$

J. Ravichandran, W. Siemons, M. L. Scullin +5

We present an approach to tune the effective mass in an oxide semiconductor by a double doping mechanism. We demonstrate this in a model oxide system Sr${}_{1-x}$La${}_x$TiO${}_{3-\delta }$, w…