Micro and Nano Mechanics Group
Revision as of 01:22, 16 February 2009 by Caiwei (Talk)

Contents

Potentials in MD++

This table contains information about the potentials use in MD++.

Name of Potential ->     Symbol   ->     Types of Materials Used For
Molecular Dynamics   ->   md_gpp     ->   Any Material (not a potential), visualization tool 
Finnis-SinClair    ->     FS_gpp     ->   Metals (FCC and BCC)Mo
Embedded Atom Method  ->  EAM_gpp   ->    Metals (FCC) Cu, Au
Lennard-Jones      ->     LJ_gpp     ->   Inert Gases Ar
Stillinger-Webber    ->   SW_gpp     ->   Si, Ge, C
Aluminum Glue       ->    AlGlue_gpp  ->  Al
Tersoff          ->       Tersoff_gpp ->  Si, C, Ge
Brenner          ->       Brenner_gpp  -> C, hydrocarbons


"Potential" Problems

These are some potential files we used in our simulations of molecular structures. Please note that since we use a variety of codes, the potential files will be in a variety of foremats. The most common codes used by our group are LAMMPS ( and ParaDyne) and MD++. These codes use different file formats for EAM potentials, so all files should specify which file format. We will also try to provide a reference describing the potential.

Potentials

MD++ Files

EAM Foiles potential for Gold. Ref: Park, H. S., Zimmerman J. A., Modeling inelasticity and failure in gold nanowires. Phys. Rev. B 72, 054106 (2005).

EAM Foiles potential for Copper. Ref: Aubry, S. and Hughes, D. A., Reductions in stacking fault widths in fcc crystals: Semiempirical calculations. Phys. Rev. B 73, 224116 (2006).

LAMMPS SET Files

EAM Foiles potential for Copper. Ref: Aubry, S. and Hughes, D. A., Reductions in stacking fault widths in fcc crystals: Semiempirical calculations. Phys. Rev. B 73, 224116 (2006).

LAMMPS FUNC Files