Progress and prospect for high temperature singlephased magnetic ferroelectrics

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（14）
• 页码范围: 2097-2112
• 页数: 16页
• 语种: 英文
• DOI: 10.1007/s11434-008-0308-3

摘要

Magnetic ferroelectrics are one of the most important functional materials. The present bottleneck lim-iting applications of them is lacking of high-temperature single-phased ferromagnetic-ferroelectric multiferroics with strong magnetoelectric coupling effect. Here, those progresses of the mechanism for coexistence of ferroelectric and magnetic order, experimental and theoretical studies on single-phased magnetic ferroelectrics, and the relationship between magnetic structure and crystal symmetry are summarized. With examples of BiFe of, BiMnO3 and Bi2FeCrO6, the difficulties encountered in this field are analyzed. At last, some prospects to develop high-temperature single-phased ferromagnetic-ferro-electric multiferroics are also presented.