5 papers
Strain modulation of transport criticality in heterogeneous solids
Sonia Vionnet, Claudio Grimaldi, Thomas Maeder +2
A vast class of disordered conducting-insulating compounds close to the percolation threshold is characterized by nonuniversal values of transport critical exponents. The lack of u…
Piezoresistive anisotropy of percolative granular metals
C. Grimaldi, P. Ryser, S. Straessler
The piezoresistive response of granular metals under uniaxial strain is strongly dependent on the concentration of the conducting phase. Here we show that the piezoresistive anisot…
Nonadiabatic high- superconductivity in FET doped fullerenes
P. Paci, E. Cappelluti, C. Grimaldi +2
The validity of some experimental data on which the paper was based have been questioned by the report of the Committee of the Bell Labs released on September 2002.
The Small Polaron Crossover: Role of Dimensionality
M. Capone, S. Ciuchi, C. Grimaldi
The crossover from quasi free electron to small polaron in the Holstein model for a single electron is studied by means of both exact and self-consistent calculations in one dimens…
Role of the superconducting gap opening on vertex corrections
E. Cappelluti, C. Grimaldi, L. Pietronero
The nonadiabatic effects due to the breakdown of Migdal's theorem in high- superconductors are strongly affected by the opening of the superconducting gap. Here we report how…