半金属石墨烯带对称结的电子输运
Electron transport through symmetrical junctions of semimetal graphene ribbons
摘要：
基于最近邻紧束缚模型，给出了低能电子输运通过两个半金属扶手椅带对称结的解析描述。结果表明，在中性点附近，除了由3 p-1和3 p +5二聚体线组成的带结处（p/2为奇数）外，都存在透射抑制。与其他互连不同，这些化合物被证明是免费的，甚至在结界面处产生的本地水平，并表现出电子背散射成反比的平方p+1。
英文摘要：
Based on the nearest-neighbor tight-binding model, we present analytical description of low-energy electron transport through a symmetrical junction of two semimetal armchair ribbons. The results obtained demonstrate the transmission suppression in the vicinity of the neutrality point except for the junction of the ribbons consisting of 3p-1 and 3p+5 dimer lines, p/2 is odd. Unlike other interconnections, these compounds are shown to be free of even local levels arising at the junction interface and exhibit electron backscattering to be inversely as the square of p+1.
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