Figure 1

Geometry of the 2D rotational symmetric model. The oxide (light grey) completely covers the bottom electrode (BE), while the top electrode (TE) does not have to cover the whole top of the oxide, but can be smaller as shown here.

Geometry of the 2D rotational symmetric model. The oxide (light grey) completely covers the bottom electrode (BE), while the top electrode (TE) does not have to cover the whole top of the oxide, but can be smaller as shown here.