Fano interference governs wave transport in disordered systems
نویسندگان
چکیده
منابع مشابه
Fano interference governs wave transport in disordered systems
Light localization in disordered systems and Bragg scattering in regular periodic structures are considered traditionally as two entirely opposite phenomena: disorder leads to degradation of coherent Bragg scattering whereas Anderson localization is suppressed by periodicity. Here we reveal a non-trivial link between these two phenomena, through the Fano interference between Bragg scattering an...
متن کاملTransport in Disordered Systems
A survey is given of the main mechanisms of dc electrical conductivity in disordered systems and of how the conductivity depends on temperature. If the localization length is large, metallic behaviour will be observed at high temperatures, at lower temperature the resistance will increase with a power of T-', and at very low temperatures, when variable range hopping occurs, the resistance will ...
متن کاملMultiple Fano effect in charge density wave systems
A general framework for analyzing the multiple Fano effect (MFE) in charge density wave (CDW) systems is developed. The MFE occurs when IR active modes have frequencies above the CDW gap and interference between the IR modes and the electronic continuum leads to a series of resonances and anti-resonances. We parameterize the peaks and dips of the absorption by a set of bare frequencies, a pinni...
متن کاملAnomalous Transport in Disordered Dynamical Systems
We consider simple extended dynamical systems with quenched disorder. It is shown that these systems exhibit anomalous transport properties such as the total suppression of chaotic diffusion and anomalous drift. The relation to random walks in random environments, in particular to the Sinai model, explains also the occurence of ageing in such dynamical systems. Anomalous transport is explained ...
متن کاملElectronic Transmission Wave Function of Disordered Graphene by Direct Method and Green's Function Method
We describe how to obtain electronic transport properties of disordered graphene, including the tight binding model and nearest neighbor hopping. We present a new method for computing, electronic transport wave function and Greens function of the disordered Graphene. In this method, based on the small rectangular approximation, break up the potential barriers in to small parts. Then using the f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Communications
سال: 2012
ISSN: 2041-1723
DOI: 10.1038/ncomms1924