Abstract
A model illustrating the fact that ferroelectric films with uniform grain size and columnar structure will exibit a suitable domain configuration for ferroelectric domain recording storage media is proposed. To verify this model, (Pb,La)TiO3 thin films are deposited by metal-organic chemical vapor deposition by a solid delivery technique to grow films with a columnar structure and granular structure. A slow source input rate results in a film with a columnar structure whereas a fast input rate produces a film with a granular structure. The film with a columnar structure exhibits a more adequate domain configuration as confirmed by electrostatic force microscope observation, and also exhibits a very stable write/read operation for the domain memory application.