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Gold-embedded zigzag graphene nanoribbons as spin gapless semiconductors
Hu, XH; Zhang, W(张伟); Sun, LT; Krasheninnikov, AV
2012
Source PublicationPHYSICAL REVIEW B
ISSN1098-0121
Volume86Issue:19
AbstractUsing density-functional theory calculations, we studied the electronic and magnetic properties of zigzag graphene nanoribbons (ZGNRs) with gold (Au) atoms embedded into different sites of the ZGNRs. Strong site dependence was found, and the system had the ferromagnetic or antiferromagnetic ground state depending on the Au atom position. Spin gapless semiconductor (SGS) behavior was observed when the Au atom was embedded into the center and edge sites of the ZGNRs. The simulations showed that the electronic structure of the ribbon strongly depends on ZGNR width, but the SGS behavior is always present when the Au atom is embedded into the center and edge sites. The SGS properties were also found to be dependent on impurity atom concentration, so that they can be tuned by either selecting the proper positions of Au atoms or changing their concentration. Our results suggest a flexible way of designing SGSs, which could be used in various spintronic, electronic, and optoelectronic applications.
Language英语
Funding Project应物所项目组
WOS IDWOS:000311139900006
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13176
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Hu, XH,Zhang, W,Sun, LT,et al. Gold-embedded zigzag graphene nanoribbons as spin gapless semiconductors[J]. PHYSICAL REVIEW B,2012,86(19).
APA Hu, XH,Zhang, W,Sun, LT,&Krasheninnikov, AV.(2012).Gold-embedded zigzag graphene nanoribbons as spin gapless semiconductors.PHYSICAL REVIEW B,86(19).
MLA Hu, XH,et al."Gold-embedded zigzag graphene nanoribbons as spin gapless semiconductors".PHYSICAL REVIEW B 86.19(2012).
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