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arXiv · 1401.3060

Defects induced ferromagnetism in plasma-enabled graphene nanopetals

Z. J. Yue·D. H. Seo·K. Ostrikov·X. L. Wang
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Abstract

Ferromagnetism in graphene is fascinating, but it is still a big challenge for practical applications due to the weak magnetization. In order to enhance the magnetization, here, we design plasma-enabled graphene nanopetals with ultra-long defective edges of up to 105 m/g, ultra-dense lattice vacancies and hydrogen chemisorptions. The designed graphene nanopetals display robust ferromagnetism with large saturation magnetization of up to 2 emu/g at 5 K and 1.2 emu/g at room temperatures. This work identifies the plasma-enabled graphene nanopetals as a promising candidate for graphene-based magnetic devices.

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Z. J. Yue, D. H. Seo, K. Ostrikov, X. L. Wang. 2014-01-14. Defects induced ferromagnetism in plasma-enabled graphene nanopetals. https://doi.org/10.1063/1.4867891

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