TY - GEN
T1 - Absolutely continuous spectrum and ballistic transport in a one-dimensional quasiperiodic system
AU - Pal, Biplab
AU - Chakrabarti, Arunava
PY - 2013/3/15
Y1 - 2013/3/15
N2 - We analyse a quasiperiodic arrangement of four atomic sites sitting at the vertices of a diamond shaped plaquette and single isolated sites, occupying a one dimensional backbone following a Fibonacci quasicrystal pattern. We work within a tight binding formalism. It is shown that, even with this simple deviation from pure one dimension, a definite relation between the numerical values of the system parameters will render all the single particle states completely extended. The spectrum will be absolutely continuous with the transmission completely ballistic throughout the band, completely violating the Cantor set character of the usual Fibonacci quasiperiodic chains.
AB - We analyse a quasiperiodic arrangement of four atomic sites sitting at the vertices of a diamond shaped plaquette and single isolated sites, occupying a one dimensional backbone following a Fibonacci quasicrystal pattern. We work within a tight binding formalism. It is shown that, even with this simple deviation from pure one dimension, a definite relation between the numerical values of the system parameters will render all the single particle states completely extended. The spectrum will be absolutely continuous with the transmission completely ballistic throughout the band, completely violating the Cantor set character of the usual Fibonacci quasiperiodic chains.
KW - Ballistic transport
KW - Quasiperiodic system
KW - Tight binding model
UR - http://www.scopus.com/inward/record.url?scp=84874873435&partnerID=8YFLogxK
U2 - 10.1063/1.4791361
DO - 10.1063/1.4791361
M3 - Conference contribution
AN - SCOPUS:84874873435
SN - 9780735411333
T3 - AIP Conference Proceedings
SP - 962
EP - 963
BT - Solid State Physics - Proceedings of the 57th DAE Solid State Physics Symposium 2012
T2 - 57th DAE Solid State Physics Symposium 2012
Y2 - 3 December 2012 through 7 December 2012
ER -