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ÎÒÏë×öMo-AgµÄºÏ½ðÀ©É¢Ä£Ä⣬µ«ÊDz¢Ã»ÓÐÏֳɵÄÊÆº¯ÊýÎļþ£¬ÎÒ²éÔÄÎÄÏײ鵽ÁËÓÐÈËÄâºÏ¹ýÕâ¸öºÏ½ðµÄÊÆº¯Êý¡£ ÊÆº¯ÊýÐÎʽÊÇFSÊÆ¸ñʽºÍEAMÊÆ²î²»¶àµÄ£¬ÎÒ¿´lammpsÊÖ²áÕâ¸öÊÆº¯Êý¿ÉÒÔͨ¹ýÒ»¸öDYNAMOµÄ³ÌÐò½âÎö³öÀ´£¬²»ÖªµÀÄúÊDz»ÊÇÒ²×ö¹ýÕâ¸öÊÆº¯ÊýµÄ½âÎöÎļþ£¬ÎÒÏëÈÃÄú°ïÎÒ¿´Ò»ÏÂÎҵijÌÐòÊDz» ÊÇÓÐÎÊÌ⣬ÎÒ֮ǰŪ³öÀ´µÄÄ£Äâ½á¹ûÖ»ÄÜÔËÐÐÒ»ÐС£Ï£ÍûÉÐÀÏʦÄúÄܳéʱ¼ä°ïÎÒ¿´Ï£¬Íò·Ö¸Ðл£¡ #include <stdio.h> #include <math.h> #include <stdlib.h> #include <unistd.h> #include <string> #include <stdarg.h> #include <string.h> #include "vector" using namespace std; #define EOK 0 #define ERROR -1 double phi(double r,double cc,double c0,double c1,double c2,double c3,double c4) { double V_r; if(r<=cc) { V_r= (r-cc)*(r-cc)*(c0+c1*r+c2*r*r+c3*pow(r,3)+c4*pow(r,4)); } else V_r=0.0; return (V_r); } double rho(double r,double d,double beta) { double rho_r; if(r<=d) rho_r= (r-d)*(r-d) + beta*beta*pow((r-d),4); else rho_r=0.0; return (rho_r); } double Frho(double rho,double AA) { double F_rho; F_rho = -1.0*AA*pow(rho,0.5); return (F_rho); } int main (void) { int Nr = 10000; double rmax =9.8; Õâ±ßȡֵµÄ±ê×¼ÊÇ£¿ double dr = rmax/(double)Nr; int Nrho = 10000; double rhomax = 45.5; double drho = rhomax/(double)Nrho; int i; string LAMMPSFilename="AgMo.eam.fs"; FILE *LAMMPSFile = fopen ((char*)LAMMPSFilename.data(), "w" ;if (!LAMMPSFile) exit (ERROR); // Header for setfl format fprintf (LAMMPSFile, \ "#-> LAMMPS Potential File in DYNAMO 86 setfl Format <-#\n"\ "# Title :Embedded-Atom Method by Arthur F. Woter 1994\n"\ "# Implemented by Nize(2015) nize19890627@gmail.com\n"\ "2 Ag Mo\n"\ "%d %20.20f %d %20.20f %20.20f\n",Nrho,drho,Nr,dr,rmax); fprintf (LAMMPSFile,"47 107.8682 4.0853 FCC\n" ;// Embedding function and density function for Ag for(i=0;i<Nrho;i++) fprintf (LAMMPSFile,"%20.20e\n",Frho((double)i*drho,0.325514)); // Density function for Ag for (i = 0; i < Nr; i++) fprintf (LAMMPSFile, "%20.20e\n",rho((double)i*dr,4.41,-1.293394)); fprintf (LAMMPSFile,"42 95.94 3.1472 BCC\n" ;// Embedding function and density function for Mo for(i=0;i<Nrho;i++) fprintf (LAMMPSFile,"%20.20e\n",Frho((double)i*drho,1.848648)); // Density function for Mo for (i = 0; i < Nr; i++) fprintf (LAMMPSFile, "%20.20e\n",rho((double)i*dr,4.14,0.0)); // Pair potential for Ag-Ag for (i = 0; i < Nr; i++) fprintf (LAMMPSFile, "%20.20e\n", (double)i*dr*phi((double)i*dr,4.76,10.681200,-12.045170,5.203072,-1.013304,0.0742308)); // Pair potential for Ag-Mo for (i = 0; i < Nr; i++) fprintf (LAMMPSFile, "%20.20e\n", (double)i*dr*phi((double)i*dr,4.50,44.406810,-45.490260,15.605110,-1.793704,0.0)); // Pair potential for Mo-Mo for (i = 0; i < Nr; i++) fprintf (LAMMPSFile, "%20.20e\n", (double)i*dr*phi((double)i*dr,3.2572,47.980660,-34.099240,5.832293,0.101749,0.0203934)); fclose (LAMMPSFile); // system("pause" ;return (EOK); ÖªµÀµÄÅóÓѰïÎÒ¿´¿´¡£¼±Çó ллÀ² QQͼƬ20150626105650.png QQͼƬ20150626105951.png QQͼƬ20150702114556.jpg |
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weihui333
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