Metallic substrates and ferroelectricity

Numerical results for the order parameter Pi as function of the applied transverse (i.e., parallel) pressure are plotted in Fig. 6.10, where we have included corresponding data obtained with insulating walls (see Fig. 6.6) as a reference. 

Given the strong similarity of both the qualitative behavior and the ac- 

To get some insight into these questions we have performed various lattice calculations similar in spirit to those de.scribod in Section 6.3.3. Specifically, we have considered (infinitely extended) slabs composed of dipolar particles located at the sites of a face-centered cubic (fee) lattice with (reduced) density pfee = 10. We have then employed the Ewald sum for dipolar systems between metallic walls [see Eq. (6.69)] to calculate the total dipolar energy f/o for various configurations characterized by perfect orientational order. Numerical results for Uq as a function of the number of lattice layers are 

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