Uzi Landman

TL;DR: In this paper, an understanding of the molecular mechanisms of tribology in thin films and at surfaces has been presented, which is of fundamental importance in many pure and applied sciences, such as computer simulations.

TL;DR: In this article, temperature-programmed reaction studies of the catalyzed combustion of CO on size-selected small monodispersed Aun (n ≤ 20) gold clusters supported on magnesia, and first-principle simulations reveal the microscopic origins of the observed unusual catalytic activity, with Au8 being the smallest catalytically active size.

TL;DR: Infrared measurements of the stretch vibration of CO adsorbed on mass-selected gold octamers soft-landed on MgO(001) with coadsorbed O2 show a red shift on an F-center–rich surface with respect to the perfect surface, agreeing with quantum ab initio calculations that predict this shift should arise via electron back-donation to the CO antibonding orbital.

TL;DR: In this article, a series of gold nanocrystals, passivated by self-assembled monolayers (SAMs) of straight-chain alkylthiolate molecules (RS, R) are described.

TL;DR: The theoretically predicted and experimentally measured hysteresis in the force versus tip-to-sample distance relationship is related to inelastic deformation of the sample surface characterized by adhesion of gold atoms to the nickel tip and formation of a connective neck of atoms.