Speaker
Carson Carroll
Description
We consider two approaches when calculating the properties of a ferroelectric system with charged
domain walls. These properties include domain wall width, electronic band structure and occupancy,
and the electronic potential energy. Previously, a single parameter, Q, was argued to determine the
crossover of the electron gas from quantum to quasi-classical. However, to obtain this result, two
simplifying approximations were made in the description of the domain wall. When compared with
a more robust approach it appears these approximations are only valid for a low Q value system. We
discuss why these approximations are not always valid depending on the material parameters, i.e.
the Landau theory parameters.
| Keyword-1 | Ferroelectric |
|---|---|
| Keyword-2 | Quantum |
