3 papers
cond-mat.mtrl-sci2001
Conduction mechanism and magnetotransport in multi-walled carbon nanotubes
Stephan Roche, Francois Triozon, Angel Rubio +1
We report on a numerical study of quantum diffusion over micron lengths in defect-free multi-walled nanotubes. The intershell coupling allows the electron spreading over several sh…
cond-mat.mes-hall1999
Quantum interferences in quasicrystals
Stephan Roche
Contributions of quantum interference effects occuring in quasicrystals are emphasized. First conversely to metallic systems, quasiperiodic ones are shown to enclose original alter…
cond-mat1997
Conductivity in 3D quasiperiodic systems
S. Roche, D. Mayou
We develop a new real-space method which allows to evaluate the Kubo-Greenwood conductivity of independent electrons in static aperiodic potentials. We apply it to a numerical stud…