Kittel law and domain formation mechanism in PbTiO${}_3$/SrTiO${}_3$ superlattices

Fernando Gómez-Ortiz, Hugo Aramberri, Juan M. López +3

We report second-principles simulations on the structural and energetic properties of domains in (PbTiO${}_3$)${}_n$/(SrTiO${}_3$)${}_n$ superlattices. For the explored layer thick…