Robust electronic and transport properties of graphene break nanojunctions

被引:8
|
作者
Erdogan, E. [1 ]
Popov, I. [2 ,3 ]
Seifert, G. [1 ]
机构
[1] Tech Univ Dresden, Inst Phys Chem, D-01062 Dresden, Germany
[2] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland
[3] Trinity Coll Dublin, CRANN, Dublin 2, Ireland
关键词
D O I
10.1103/PhysRevB.83.245417
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report a systematic research on structural, electronic, and transport properties of a variety of graphene nanoribbon (GNR) break junctions, with different widths and edge chiralities. Our extensive molecular dynamics simulations provide insight into a variety of possible geometries of the break junctions that are obtained by stretching of the graphene ribbons beyond their breaking points. One or more carbon chains can emerge as structural bridges in the junctions. All investigated ruptured systems obey conduction gaps even when their geometries significantly differ by the number of the bridging chains and the variety of their contacts with GNR electrodes.
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页数:6
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