arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0712.0080cond-mat.mes-hallcond-mat.str-elhep-th
收藏

手征对称二维体系的普适Landauer电导

Universal Landauer conductance in chiral symmetric 2d systems

Daniel G. Barci, Luis E. Oxman

摘要:

我们研究了任意形状的超净石墨烯片的输运性质,该石墨烯片与由相同材料组成的引线电连接。如果局域相互作用不破坏手征对称性,我们表明,电导是量子化的,因为它是由准一维导线。作为一个例子,我们表明,光滑的结构变形的石墨烯平面不修改的电导量子化。

英文摘要:

We study transport properties of an arbitrarily shaped ultraclean graphene sheet, adiabatically connected to leads,composed by the same material. If the localized interactions do not destroy chiral symmetry, we show that the conductance is quantized, since it is dominated by the quasi one-dimensional leads. As an example, we show that smooth structural deformations of the graphene plane do not modify the conductance quantization.

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。

↑