Figure 2
From: Controlling spin-dependent tunneling by bandgap tuning in epitaxial rocksalt MgZnO films

Calculated bandgap and barrier height of Mg1−xZnxO as a function of Zn doping x.
(a) calculated results, (b,c) the barrier height at bottom/top interfaces (φ1,2) in parallel and antiparallel configuration obtained by fitting I – V curves, respectively. The solid lines are guide for the eyes only.