单相室温磁电材料BiFeO 3的研究现状

摘要

Under room temperature,multiferroic material BiFeO3 has attracted considerable attentions during the past decade,and more and more fantastic physical properties of the compound have been discovered.The status quo of the re-search on the structural transitions and modulation of physical properties through A-site rare-earth doping is presented in this paper.%铁磁、铁电和多铁性材料，被称为信息存储终极材料，近来已成为国际上一个新的研究领域。多功能材料BiFeO3是著名的铁电、压电和磁电材料，在远高于室温的范围内具有良好的铁电性，其铁电极化是同类材料中最大的，因而受到科研人员的强烈关注，越来越多的新奇物理性质被发现。本文探讨 A位稀土离子掺杂诱导与调控BiFeO3结构相变、物性变化研究的现状。