Towards two-dimensional room temperature multiferroics

• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: RESEARCH HIGHLIGHTS
• 页码范围: 1844-1845
• 页数: 2页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa258

摘要

Multiferroic materials with coupled fer-roelectricity(FE)and magnetism have long been sought for novel memory de-vices[1-3].The co-existence of FE and magnetism is rare in nature,which can be attributed to their mutual exclusive ori-gins(empty d shell for conventional fer-roelectric order and partially filled d shell for magnetic order).Moreover,mag-netoelectric(ME)coupling is weak in type-I multiferroics with FE and mag-netism arising respectively from differ-ent mechanisms,while for type-II mul-tiferroics with FE induced by magnetic ordering,their low spin-driven ferroelec-tric polarizations(mostly ＜0.01 C/m2)and Curie temperature(mostly ＜150 K)hinder their practical applications[4,5].To date,almost all synthesized magne-toelectric multiferroics have been three-dimensional.