Enhanced phonon-drag by nanoscale design of homoepitaxial \hbox{${\hat{I}}^2$-Ga${}_2$O${}_3$}

J. Boy, R. Mitdank, A. Popp +2

Phonon drag may be harnessed for thermoelectric generators and devices. Here, we demonstrate the geometric control of the phonon-drag contribution to the thermopower. In nanometer-…