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arXiv 0903.5215cond-mat.mes-hallcond-mat.mtrl-sci
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量子网络的磁通诱导半导体行为

Flux induced semiconducting behavior of a quantum network

Shreekantha Sil, Santanu K. Maiti, Arunava Chakrabarti

摘要:

我们证明了一个菱形周期网络,最近提出的自旋过滤器的模型(A。Aharony { \em等} \cite{aharon08})能够表现为p型或n型半导体,这取决于占据晶格顶点的原子的原位电势的适当选择以及穿过网络的每个元格的磁通量的强度。通过对无限网络的态密度和有限系统的电导的详细研究,确立了这一思想。

英文摘要:

We show that a diamond shaped periodic network, recently proposed as a model of a spin filter (A. Aharony {\em et al.} \cite{aharon08}) is capable of behaving as a p-type or an n-type semiconductor depending on a suitable choice of the on-site potentials of the atoms occupying the vertices of the lattice, and the strength of the magnetic flux threading each plaquette of the network. A detailed study of the density of states of an infinite network is made together with the conductance of finite sized system to establish the idea.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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