The electrical conductivity tensor of $\beta$-Ga2O3 analyzed by van der Pauw measurements: Inherent anisotropy, off-diagonal element, and the impact of grain boundaries

Christian Golz, Vanesa Hortelano, Fariba Hatami +3

The semiconducting oxide $\beta$-Gallium Oxide ($\beta$-Ga${}_2$O${}_3$) possesses a monoclinic unit cell whose low symmetry generally leads to anisotropic physical properties. For example…