教師資料查詢 | 類別: 期刊論文 | 教師: 莊程豪 CHENG-HAO CHUANG (瀏覽個人網頁)

標題:Graphene Supported Graphene/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 Graphene/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
語言英文
ISSN2045-2322
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
國別英國
公開徵稿
出版型式,電子版
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