Defects induced ferromagnetism in plasma-enabled graphene nanopetals

Authors

Zengji Yue, University of WollongongFollow
Donghan Seo, The University of Sydney
Kostya Ostrikov, University of Wollongong
Xiaolin Wang, University of WollongongFollow

RIS ID

88920

Publication Details

YUE, Z., Seo, D., Ostrikov, K. & Wang, X. (2014). Defects induced ferromagnetism in plasma-enabled graphene nanopetals. Applied Physics Letters, 104 (9), 092417-1-092417-4.

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. 2014 AIP Publishing LLC.

Grant Number

ARC/DP1094073

Additional Grant Number

http://purl.org/au-research/grants/arc/DP1094073