Analytic expression for the appearance of the Slater mode in ferroelectric perovskites

✍ Scribed by Kaoru Miura

• Book ID: 104166091
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 88 KB
• Volume: 126
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/s0038-1098(03)00185-6

✦ Synopsis

An analytic expression for the appearance of the Slater mode in ferroelectric perovskites has been proposed through the application of a configuration-interaction problem discussed by Zaanen and Sawatzky. In ferroelectric perovskite oxides ABO 3 , the appearance of the Slater mode is found to be closely related to the p -d hybridization between B and O as well as the p -d energy gap and on-site Coulomb energy in the B d state. Numerical estimations using the proposed expression are consistent with the experimental results of ATiO 3 (A ¼ Ca, Sr, Ba and Pb).