Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Rolf Riklund"'
Publikováno v:
Physica A: Statistical Mechanics and its Applications. 387:4733-4739
Spectral properties of 1D systems with long-range correlated disorder and their response to an applied field are examined. An algorithm based on the additive multi-step Markov chains is used to ana ...
Autor:
Rolf Riklund, Bruno Lindquist
Publikováno v:
Physical Review B. 60:10054-10061
With the fundamental work of Hofstadter on the combined effects of band structure and magnetic field on the electronic states in two dimensions (2D) as a starting point, we numerically study the effects on the Hofstadter butterfly of including a bina
Autor:
Bruno Lindquist, Rolf Riklund
Publikováno v:
Physical Review B. 56:13902-13907
Autor:
Rolf Riklund, Michael Hörnquist
Publikováno v:
Physical Review B. 55:875-881
We investigate numerically, within the rotating wave approximation, the existence of stationary anharmonic localized modes in diatomic lattices, where the atoms are ordered according to the Thue-Morse sequence and the Fibonacci sequence, respectively
Publikováno v:
Physical Review B. 47:8547-8551
Local and global scaling properties of the integrated density of states of the tight-binding Rudin-Shapiro model are numerically derived by investigating the dependence of the bandwidths of its periodic approximants on the size of the unit cells. Sca
Publikováno v:
Physical Review B. 46:3296-3304
The localization of electrons in a one-dimensional tight-binding model with diagonal aperiodicity given by the Rudin-Shapiro sequence is studied in the frame of the transfer-matrix formalism. It is proved that the trace map of the model possesses a p
Publikováno v:
Physical Review B. 45:105-114
Electron localization and optical transmission in one-dimensional systems with two components distributed according to the Rudin-Shapiro sequence are investigated. The nature of the eigenstates in the diagonal tight-binding model is studied by making
Autor:
Rolf Riklund, Magnus Johansson
Publikováno v:
Physical Review B. 43:13468-13475
A one-dimensional tight-binding model for incommensurate crystals including next-nearest-neighbor interactions is studied. The model is self-dual, and includes as special cases the self-dual Aubry model as well as the earlier studied non-self-dual ex
Autor:
Rolf Riklund, Magnus Johansson
Publikováno v:
Physical Review B. 42:8244-8254
Almost all models for one-dimensional incommensurate systems studied up to now have two incommensurate frequencies, and the electronic spectra for the most studied models have shown no mobility edge (the Aubry model) or at the most one (the Soukoulis
Publikováno v:
Physical Review B. 42:3680-3689
Optical transmission through binary multilayers arranged according to deterministic aperiodic distribution rules is investigated using an extension of the trace-map technique. It is proven that in order to get a complete description of this ideal exp