Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: Alex Smolyanitsky (Fed)

Displaying 26 - 29 of 29

Anomalous Friction in Suspended Graphene

September 20, 2012

Author(s)

Alexander Y. Smolyanitsky, Jason P. Killgore

Since the discovery of the Amonton's law and with support of modern tribological models, friction between surfaces of three-dimensional materials is known to generally increase when the surfaces are in closer contact. Here, using molecular dynamics

Effect of elastic deformation on frictional properties of few-layer graphene

January 9, 2012

Author(s)

Alexander Y. Smolyanitsky, Jason P. Killgore, Vinod K. Tewary

We describe the results of Brownian dynamics (BD) simulations of an AFM tip scanned on locally suspended few-layer graphene. The effects of surface compliance and sample relaxation are directly related to the observed friction force. We demonstrate that

Graphene-metal interconnect: an atomistic simulation

August 11, 2011

Author(s)

Alexander Y. Smolyanitsky, Vinod K. Tewary

We develop a set of computationally efficient and accurate interatomic interactions for an atomistic simulation of the properties of graphene on nickel surface. The approach is based on the modified embedded atom method (MEAM) for the C-C and Ni-Ni

Simulation of lattice strain due to CNT-metal interface

January 17, 2011

Author(s)

Alexander Y. Smolyanitsky, Vinod K. Tewary

We report an atomistic molecular statics study of strains in single wall carbon nanotubes (SWCNTs) interfaced with a planar nickel surface. We calculate axial and radial strain distributions along the SWCNT axis. We demonstrate strains of up to 2%