Room-Temperature Ferromagnetism of Graphene

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• 作者：Yan Wang ; Yi Huang ; You Song ; Xiaoyan Zhang ; Yanfeng Ma ; Jiajie Liang ; Yongsheng Chen
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：January 14, 2009
• 年：2009
• 卷：9
• 期：1
• 页码：220-224
• 全文大小：143K
• 年卷期：v.9,no.1(January 14, 2009)
• ISSN：1530-6992

文摘

Aiming at molecular-based magnets, ferromagnetism of pure carbon-based materials is fundamentally and technologically extremely important for many applications. While it is still not fully understood, many recent theoretical works have suggested that one-atom-thick two-dimensional graphene materials may show ferromagnetism due to the existence of various defects or topological structures as the spin units and the possible long-range ordered coupling among them. Here, we report the experimental results on the ferromagnetism of graphene-based materials at room temperature. The observed room-temperature ferromagnetism is believed to come from the defects on graphene.