Graphene Supported Graphone/Graphane Bilayer Nanostructure Material for Spintronics
學年 102
學期 1
出版（發表）日期 2014-01-06
作品名稱 Graphene Supported Graphone/Graphane Bilayer Nanostructure Material for Spintronics
作品名稱（其他語言）
著者 S. C. Ray; N. Soin; T. Makgato; C. H. Chuang; W. F. Pong; S. S. Ray; S. K. Ghosh; A. Strydom; J. A. Mclaughlin
單位
出版者
著錄名稱、卷期、頁數 Scientific Reports 4, 3862
摘要 We report an investigation into the magnetic and electronic properties of partially hydrogenated vertically aligned few layers graphene (FLG) synthesized by microwave plasma enhanced chemical vapor deposition. The FLG samples are hydrogenated at different substrate temperatures to alter the degree of hydrogenation and their depth profile. The unique morphology of the structure gives rise to a unique geometry in which graphane/graphone is supported by graphene layers in the bulk, which is very different from other widely studied structures such as one-dimensional nanoribbons. Synchrotron based x-ray absorption fine structure spectroscopy measurements have been used to investigate the electronic structure and the underlying hydrogenation mechanism responsible for the magnetic properties. While ferromagnetic interactions seem to be predominant, the presence of antiferromagnetic interaction was also observed. Free spins available via the conversion of sp2 to sp3 hybridized structures, and the possibility of unpaired electrons from defects induced upon hydrogenation are thought to be likely mechanisms for the observed ferromagnetic orders.
關鍵字
語言 en
ISSN 2045-2322
期刊性質 國外
收錄於 SCI
產學合作 國內 國外
通訊作者 S. C. Ray
審稿制度 否
國別 GBR
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/104603 )