Juan José Sáenz

Abstract: A detailed analysis of electrostatic interactions between a dc-biased tip and a metallic or insulating sample is presented For inhomogeneous thin dielectric films, the scanning probe signal is shown to be proportional to the convolution between an effective surface profile and a response function of the microscope Based on the properties of the response function, tip-shape effects on the lateral resolution in electrostatic force microscopy are discussed For tip-sample distances D smaller than the tip radius R, the resolution is found to be proportional to (DR)1/2

TL;DR: A simple model for the evolution of atomic-scale metallic contacts together with exact free-electron calculations of the conductance during an elongation-contraction process, inspired by the results of MD simulations as well as by the recent experiments on contact nanomechanics.

TL;DR: In this article, the authors studied the evolution of rare-gas clusters after their ionization and found that, assuming the formation of a molecular dimer ion in the cluster, complete dissociation of small clusters occurs, in agreement with recent experimental results.

TL;DR: Amorphous photonic materials based on dense assemblies of high refractive index spherical particles are presented in this paper, where light transmission through these photonic glasses shows a nontrivial wavelength dependence.

TL;DR: In this paper, a detailed analysis of the distribution of conductances of quasi-one-dimensional disordered wires in the metal-insulator crossover is presented, obtained from a Monte Carlo solution of the Dorokhov, Mello, Pereyra, and Kumar (DMPK) scaling equation.