Engineering the electronic structure of zigzag graphene nanoribbons with periodic line defect

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• 作者：Chandrima Chakravarty ; Bikash Mandal ; Pranab Sarkar ; ^{pranab.sarkar@visva-bharati.ac.in}
• 关键词：Graphene nanoribbon ; Periodic line defect ; 5-7 line defect ; Magnetic properties ; Effect of doping and spin filtering properties
• 刊名：Physics Letters A
• 出版年：2017
• 出版时间：30 January 2017
• 年：2017
• 卷：381
• 期：4
• 页码：307-313
• 全文大小：1211 K
• 卷排序：381

文摘

The magnetic and electronic properties of zGNR with 5-7 LD can be engineered through the variation of the width of zGNR and the position of LD. Ferromagnetic behaviour in zGNR can be found by introducing 5-7 LD close to one edge of the ribbon. Semi-metallic to semi-metallic semiconductor transition occurs by increasing the width of the ribbon or by changing the position of the LD. There is significant effect of the doping on the degeneracy of the spin states of 4-4-LD-zGNR. The transport properties calculation of N-doped 4-4-LD-zGNR reveals that it has high spin filtering efficiencies.