Physical properties of ferroelectric superlattice A3/B3 system in electric field

• 来源期刊: 中国物理(英文版)
• 关键词: ferroelectric superlattice polarization pyroelectric coefficient susceptibility
• 年，卷（期）: 2005,（6）
• 页码范围: 1243-1245
• 页数: 3页
• 语种: 英文

摘要

Based on the differential operator technique, a transverse Ising model (TIM) in the effective-field theory is developed to study the physical properties of a ferroelectric superlattice A3/B3 system. The effects of an external electric field on the polarization, susceptibility and pyroelectric coefficient of the ferroelectric superlattice A3/B3 system are discussed in detail. The susceptibility of the ferroelectric superlattice A3/B3 system decreases with the increase of the electric field, implying that the polarization is weak.