Improved electronic and magnetic properties of reduced graphene oxide films
作者： Ross McIntosh , Messai A. Mamo , Brice Jamieson , Saibal Roy , Somnath Bhattacharyya
DOI: 10.1209/0295-5075/97/38001
关键词: Band gap 、 Diamagnetism 、 Condensed matter physics 、 Phase transition 、 Organic acid 、 Materials science 、 Ferromagnetism 、 Graphene 、 Oxide 、 Magnetization
摘要: We demonstrate semi-metallic transport in graphene oxide layers treated with an organic acid through a nearly linear current-vs.-voltage relationship and the weak temperature dependence of resistance from high temperatures down to 20 K. Additionally energy gap was observed below 17 K due formation local barriers by residual oxygen groups disorder reduced (RGO) sheets. At higher shows negative T2 dependence. Temperature dependent magnetization measurements showed phase transition diamagnetic ferromagnetic at around 10 K, agreement electronic properties RGO films.
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