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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><HEAD> <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9"> <TITLE>XMD - Molecular Dynamics Program: Introduction</TITLE> <LINK HREF="xmd-3.html" REL=next> <LINK HREF="xmd-1.html" REL=previous> <LINK HREF="xmd.html#toc2" REL=contents></HEAD><BODY><A HREF="xmd-3.html">Next</A><A HREF="xmd-1.html">Previous</A><A HREF="xmd.html#toc2">Contents</A><HR><H2><A NAME="s2">2. Introduction</A></H2><P><P>XMD is a program which performs Computer Molecular Dynamics (CMD)simulations. It can use Embedded Atom Method (EAM) potentials, pairpotentials, Tersoff's silicon-carbon potential [1], orStillinger-Weber's Silicon potential [2].With XMD you cangenerate specific lattice structures. With these lattice structuresyou canperform calculations using both static (energies or forces) and dynamic(molecular dynamics). XMD reads a command file which describes aan initial atomic system,the simulation to be performed, and the output desired. Thiscommand file is a normal text file (a file that can be read by a normaltext editor). Normal text files are also used for recording energiesduring the course of a simulation. Special format files (files thancannot be used with text editors) are used for storing the particlecoordinates (RCV files) and the complete CMD state (STA files).<P><P><P><P><HR><A HREF="xmd-3.html">Next</A><A HREF="xmd-1.html">Previous</A><A HREF="xmd.html#toc2">Contents</A></BODY></HTML>
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