Quantum size effect transition in percolating nanocomposite films

Quantum Size Effect in Conductivity of Multilayer Metal Films

Finite-size effects in nanocomposite thin films and fibers.

Monte Carlo simulations of finite-size effects for continuum percolation in three-dimensional, rectangular sample spaces filled with spherical particles were performed. For samples with any dimension less than 10-20 times the particle diameter, finite-size effects were observed. For thin films in the finite-size regime, percolation across the thin direction of the film gave critical volume frac...

Quantum interference and the giant Hall effect in percolating systems

We show that in metallic percolating networks the wave nature of the charge carriers can significantly modify the classical picture of the Hall effect, especially in the metal concentration range x'xq , where x denotes the metal volume, and xq the quantum-percolation threshold. Calculations based on the model of local quantum interference effect are shown to give a consistent and quantitative a...

Transition metal carbide nanocomposite and amorphous thin films

............................................................................. i Populärvetenskaplig sammanfattning ........................................ iii Preface ............................................................................... v Acknowledgements ............................................................... xi

Quantum-size effects in ultrathin Mg films

Recent experiments on the oxidation of ultrathin Mg films have revealed the existence of a correlation between surface reactivity and quantum-size effects. Using ab initio density-functional calculations, we have investigated the electronic properties of epitaxial Mg 0001 films, 5–17 atomic-layer thick, on a W 110 substrate to clarify the origin of this correlation. We find that the decay lengt...