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Kondo conductance across the smallest spin 1/2 radical molecule
Ryan Requist, Silvio Modesti, Pier Paolo Baruselli +3
Molecular contacts are generally poorly conducting because their energy levels tend to lie far from the Fermi energy of the metal contact, necessitating undesirably large gate and…
Self-consistent Gutzwiller study of bcc Fe: interplay of ferromagnetic order and kinetic energy
Giovanni Borghi, Michele Fabrizio, Erio Tosatti
The Gutzwiller technique has long been known as a method to include correlations in electronic structure calculations. Here we implement an ab-initio Gutzwiller+LDA calculation, an…
Sliding on a Nanotube: Interplay of Friction, Deformations and Structure
Hsiang-Chih Chiu, Beate Ritz, Suenne Kim +3
The frictional properties of individual carbon nanotubes (CNTs) are studied by sliding an atomic force microscopy tip across and along its principle axis. This direction-dependent…
Electron-doped organics: Charge-disproportionate insulators and Hubbard-Fröhlich metals
S. Shahab Naghavi, Michele Fabrizio, Tao Qin +1
Several examples of metallic electron doped polycyclic aromatic hydrocarbons (PAHs) molecular crystals have recently been experimentally proposed. Some of them have superconducting…
Stick-Slip Nanofriction in Trapped Cold Ion Chains
Davide Mandelli, Andrea Vanossi, Erio Tosatti
Stick-slip -- the sequence of mechanical instabilities through which a slider advances on a solid substrate -- is pervasive throughout sliding friction, from nano to geological sca…
A fingerprint of surface-tension anisotropy in the free-energy cost of nucleation
Santi Prestipino, Alessandro Laio, Erio Tosatti
We focus on the Gibbs free energy for nucleating a droplet of the stable phase (e.g. solid) inside the metastable parent phase (e.g. liquid), close to the first-order transiti…