Abstract
This chapter focuses on the specific physical properties at domain walls in ferroelectric materials where the spontaneous electric polarization appears as a by-product of a structural or magnetic phase transition, and not as its primary order parameter. The chapter begins with a short introduction to the fundamentals of improper ferroelectricity, followed by a discussion of emergent functional domain wall properties in different improper ferroelectric model systems. It then covers the broad variety of electronic states and application opportunities associated with improper ferroelectric domain walls in hexagonal manganites. Next, this chapter addresses the electronic transport and manipulation of domain walls in boracites, and presents additional magnetoelectric coupling phenomena that arise when the interaction of magnetic spins and electric charges gives rise to improper ferroelectricity. A perspective regarding future research and application opportunities of improper ferroelectric domain walls is given last.
| Original language | English |
|---|---|
| Title of host publication | Domain walls: from fundamental properties to nanotechnology concepts |
| Editors | Dennis Meier, Jan Seidel, Marty Gregg, Ramamoorthy Ramesh |
| Place of Publication | New York |
| Publisher | Oxford University Press |
| Chapter | 6 |
| Pages | 129-151 |
| Number of pages | 23 |
| ISBN (Electronic) | 9780191895319 |
| ISBN (Print) | 9780198862499 |
| DOIs | |
| Publication status | Published - 01 Sept 2020 |