Physical nature of critical wave functions in Fibonacci systems.
نویسندگان
چکیده
We report on a new class of critical states in the energy spectrum of general Fibonacci systems. By introducing a transfer matrix renormalization technique, we prove that the charge distribution of these states spreads over the whole system, showing transport properties characteristic of electronic extended states. Our analytical method is a first step to find out the link between the spatial structure of these critical wave functions and the quasiperiodic order of the underlying lattice. PACS numbers: 71.25.-s, 61.44.+p, 71.90.+q Typeset using REVTEX
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عنوان ژورنال:
- Physical review letters
دوره 76 16 شماره
صفحات -
تاریخ انتشار 1996