Room Temperature Multiferroicity of Charge Transfer Crystals

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• 作者：Wei Qin ; Xiaomin Chen ; Huashan Li ; Maogang Gong ; Guoliang Yuan ; Jeffrey C. Grossman ; Manfred Wuttig ; Shenqiang Ren
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：September 22, 2015
• 年：2015
• 卷：9
• 期：9
• 页码：9373-9379
• 全文大小：527K
• ISSN：1936-086X

文摘

Room temperature multiferroics has been a frontier research field by manipulating spin-driven ferroelectricity or charge-order-driven magnetism. Charge-transfer crystals based on electron donor and acceptor assembly, exhibiting simultaneous spin ordering, are drawing significant interests for the development of all-organic magnetoelectric multiferroics. Here, we report that a remarkable anisotropic magnetization and room temperature multiferroicity can be achieved through assembly of thiophene donor and fullerene acceptor. The crystal motif directs the dimensional and compositional control of charge-transfer networks that could switch magnetization under external stimuli, thereby opening up an attractive class of all-organic nanoferronics.