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.
@article{arxiv.1401.3060,
title = {Defects induced ferromagnetism in plasma-enabled graphene nanopetals},
author = {Z. J. Yue and D. H. Seo and K. Ostrikov and X. L. Wang},
journal= {arXiv preprint arXiv:1401.3060},
year = {2014}
}