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- Olivier Braun, Myriam Peyrard, V. Bortolani, A. Franchini, Andrea Vanossi
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2005

We show that the transition from smooth sliding to stick-slip motion in a single planar frictional junction always takes place at an atomic-scale relative velocity of the substrates.

- Andrea Vanossi, Juliane RÃ¶der, A. R. Bishop, V. Bortolani
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2001

We consider the underdamped dynamics of a chain of atoms subject to a dc driving force and a quasiperiodic substrate potential. The system has three inherent length scales which we take to beâ€¦ (More)

- Y. N. Zhang, V. Bortolani, Giampaolo Mistura
- Journal of physics. Condensed matter : anâ€¦
- 2014

The adsorption and tribological properties of graphene have received increasing attention for the further development of graphene-based coatings in applications. In this work, we performed firstâ€¦ (More)

- Andrea Vanossi, Juliane RÃ¶der, A. R. Bishop, V. Bortolani
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2003

The dynamics of a Frenkel-Kontorova chain subject to a substrate potential with a multiple-well structure and driven by an external dc force is studied in the underdamped regime. Making a rationalâ€¦ (More)

- A. Franchini, V. Bortolani, Gonzalo Santoro, M Brigazzi
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2008

We present a molecular dynamics analysis of the static friction between two thick slabs. The upper block is formed by N2 molecules and the lower block by Pb atoms. We study the effects of theâ€¦ (More)

- A. Franchini, V. Bortolani, Gonzalo Santoro, M Brigazzi
- Journal of physics. Condensed matter : anâ€¦
- 2010

Molecular dynamics simulations of the sliding friction between two thick solid slabs are performed. The upper body is formed of light N(2) particles and the substrate of heavy Pb atoms. Among theâ€¦ (More)

- Y. N. Zhang, Felix Hanke, V. Bortolani, M. Persson, R. Q. Wu
- Physical review letters
- 2011

To understand the tribological properties of Ne and Kr on Pb(111), the potential energy surfaces for sliding motion of Ne, Kr, and Xe monolayers on the Pb(111) surface are examined through densityâ€¦ (More)

- Nolwenn Jean, Mario Italo Trioni, Gian Paolo Brivio, V. Bortolani
- Physical review letters
- 2004

We perform a density-functional-theory calculation of the static repulsive potential of He scattering off a noble and a simple metal surface. The classical turning point of He on Cu(111) is found toâ€¦ (More)

- A. Franchini, V. Bortolani, Gonzalo Santoro, K Xheka
- Journal of physics. Condensed matter : anâ€¦
- 2011

We present molecular dynamics simulations of static friction for a monolayer of Xe deposited on a thick slab of Cu for two different geometries. The interaction potential between Xe and Cu has beenâ€¦ (More)

We present the theory for Multiple Energy Xâ€“ray Holography (MEXH), using a multipole expansion for the scattered field. We find that light polarization plays a crucial role in the reconstruction ofâ€¦ (More)