Maciá Barber, Enrique Alfonso2023-06-202023-06-201999-10-011098-012110.1103/PhysRevB.60.10032https://hdl.handle.net/20.500.14352/60198©1999 The American Physical Society I acknowledge M. Victoria Hernández for a critical reading of the manuscript. This work was supported by UCM under Project No. PR64/99-8510.We report on the possibility of modulating the transport properties of critical normal modes in Fibonacci quasicrystals by using the mass ratio as a tuning parameter. The relationship between the spatial structure and the transport properties of these modes is studied analytically in terms of the transmission and Lyapunov coefficients. Power spectrum analysis of the critical modes indicates a complex modulated structure in agreement with previous experimental results, [S0163-1829(99)11337-7].engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.60.10032https://journals.aps.orgopen access538.9Extended electronic statesOne-dimensional quasicrystalsQuasi-crystalsWave-functionsLatticeSystemsSuperlatticeTransparentPhononsChainFísica de materialesFísica del estado sólido2211 Física del Estado Sólido