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The spintronic functionality in a junction of naphthalene diimide with different molecule-graphene linkers

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成果类型:
期刊论文
作者:
Zhang, Ao;Cao, Liemao;Liu, Guang;Liu, Ziran*;Liao, Wenhu;Zhou, Guanghui
通讯作者:
Liu, Ziran
作者机构:
[Zhang, Ao; Cao, Liemao; Liu, Guang; Zhou, Guanghui; Liu, Ziran] Hunan Normal Univ, Minist Educ, Key Lab Low Dimens Struct & Quantum Manipulat, Dept Phys, Changsha 410081, Hunan, Peoples R China.
[Zhang, Ao; Cao, Liemao; Liu, Guang; Zhou, Guanghui; Liu, Ziran] Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat H, Changsha 410081, Hunan, Peoples R China.
[Cao, Liemao] Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.
[Liao, Wenhu; Zhou, Guanghui] Jishou Univ, Coll Phys Mech & Elect Engn, Jishou 416000, Peoples R China.
通讯机构:
[Liu, Ziran] Hunan Normal Univ, Minist Educ, Key Lab Low Dimens Struct & Quantum Manipulat, Dept Phys, Changsha 410081, Hunan, Peoples R China.
[Liu, Ziran] Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat H, Changsha 410081, Hunan, Peoples R China.
语种:
英文
期刊:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN:
0304-8853
年:
2019
卷:
471
页码:
555-560
文献类别:
WOS:Article
所属学科:
WOS学科类别:Materials Science, Multidisciplinary;Physics, Condensed Matter
入藏号:
基金类别:
National Natural Science Foundation of China [11774085]; Research Foundation of Hunan Provincial Education Commission [16A124]; Hunan Provincial Innovation Foundation for Postgraduate [CX2016B165]
机构署名:
本校为其他机构
院系归属:
物理与电子工程学院
摘要:
Using the method of density function theory (DFT) in combination with none-equilibrium Green's functions, we investigate the behavior of spin-charge transport through a junction of a naphthalene diimide (NDI) between two graphene electrodes with different molecule-graphene linkers. We observe the obvious effects of spin-filtering and the spin-rectifying when the two electrodes are set in different spin configurations. Specifically, the ratio of spin-filtering can be up to almost 100% and the magnitude of magnetoresistance reaches 10(5). More interestingly, we find that the apparent effect of negative differential resistance (NDR) in the junction only with the linking benzene under the parallel spin configuration. As the molecule-graphene linker is replaced by the carbon chain under the parallel configuration, the NDR behavior is almost disappeared. Therefore, our result concludes that the different molecule-graphene linkers can remarkably modulate the spin-charge transport property of molecular junction device.
参考文献:
Atodiresei N, 2010, PHYS REV LETT, V105, DOI 10.1103/PhysRevLett.105.066601
Brandbyge M, 2002, PHYS REV B, V65, DOI 10.1103/PhysRevB.65.165401
BUTTIKER M, 1985, PHYS REV B, V31, P6207, DOI 10.1103/PhysRevB.31.6207
Cao LM, 2017, ORG ELECTRON, V48, P357, DOI 10.1016/j.orgel.2017.06.036
Chappert C, 2007, NAT MATER, V6, P813, DOI 10.1038/nmat2024

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