Ballistic conduction in macroscopic non-periodic lattices
Por:
Wang, CM, Ramirez, C, Sanchez, F, Sanchez, V
Publicada:
1 jun 2015
Resumen:
In this paper, the dc electronic transport at zero temperature in aperiodic systems with macroscopic length is studied by using a real-space renormalization plus convolution method developed for the Kubo-Greenwood formula within the tight-binding formalism. We analytically prove the existence of transparent states in several generalized Fibonacci lattices, as well as in segmented linear chains, where they always appear if the number of bonds in each segment is even, regardless the ordering of segments. For two-dimensional square-lattice tapes with a periodic or non-periodic Fano-impurity plane, we found a novel ballistic transport state in the dc conductance spectra. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Filiaciones:
Wang, CM:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
Ramirez, C:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Fis, Mexico City 04510, DF, Mexico
Sanchez, F:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Fis, Mexico City 04510, DF, Mexico
Sanchez, V:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Fis, Mexico City 04510, DF, Mexico
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