Electronic transport properties of zigzag carbon- and boron-nitride-nanotube heterostructures

作者: P. Zhao , D.S. Liu , Y. Zhang , Y. Su , H.Y. Liu

DOI: 10.1016/J.SSC.2012.03.018

关键词: Condensed matter physicsQuantum transportBoron nitride nanotubeDensity functional theoryHamiltonian (quantum mechanics)Tube lengthHeterojunctionMaterials scienceZigzagCarbon nanotubeNanotechnology

摘要: Abstract Using first-principles density functional theory and non-equilibrium Green's function formalism for quantum transport calculation, we have investigated the electronic properties of heteronanotubes by joining a zigzag (6,0) carbon nanotube boron nitride with different atomic compositions joint configurations. Our results show that composition configuration affect strongly properties. Obvious negative differential resistance behavior large rectifying are obtained in heterostructure certain configuration. Moreover, tube length radius can observed NDR behaviors. The behaviors explained terms evolution transmission spectrum applied bias combined molecular projected self-consistent Hamiltonian states analysis.

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