add eam/he pair style to distribution

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Axel Kohlmeyer 2021-01-13 22:24:44 -05:00
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10 changed files with 12574 additions and 27 deletions

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@ -38,6 +38,9 @@ pair_style eam/cd/old command
pair_style eam/fs command
=========================
pair_style eam/he command
=========================
Accelerator Variants: *eam/fs/gpu*, *eam/fs/intel*, *eam/fs/kk*, *eam/fs/omp*, *eam/fs/opt*
Syntax
@ -47,7 +50,7 @@ Syntax
pair_style style
* style = *eam* or *eam/alloy* or *eam/cd* or *eam/cd/old* or *eam/fs*
* style = *eam* or *eam/alloy* or *eam/cd* or *eam/cd/old* or *eam/fs* or *eam/he*
Examples
""""""""
@ -67,6 +70,9 @@ Examples
pair_style eam/fs
pair_coeff * * NiAlH_jea.eam.fs Ni Al Ni Ni
pair_style eam/he
pair_coeff * * PdHHe.eam.he Pd H He
Description
"""""""""""
@ -104,8 +110,8 @@ are parameterized in terms of LAMMPS :doc:`metal units <units>`.
potentials, the same way that DYNAMO does. Alternatively, a single
DYNAMO *setfl* file or Finnis/Sinclair EAM file can be used by LAMMPS
to model alloy systems by invoking the *eam/alloy* or *eam/cd* or
*eam/fs* styles as described below. These files require no mixing
since they specify alloy interactions explicitly.
*eam/fs* or *eam/he* styles as described below. These files require no
mixing since they specify alloy interactions explicitly.
.. note::
@ -143,10 +149,6 @@ DYNAMO single-element *funcfl* format. If the DYNAMO file was created
by a Fortran program, it cannot have "D" values in it for exponents.
C only recognizes "e" or "E" for scientific notation.
Note that unlike for other potentials, cutoffs for EAM potentials are
not set in the pair_style or pair_coeff command; they are specified in
the EAM potential files themselves.
For style *eam* a potential file must be assigned to each I,I pair of
atom types by using one or more pair_coeff commands, each with a
single argument:
@ -336,8 +338,11 @@ distribution have a ".cdeam" suffix.
Style *eam/fs* computes pairwise interactions for metals and metal
alloys using a generalized form of EAM potentials due to Finnis and
Sinclair :ref:`(Finnis) <Finnis1>`. The total energy Ei of an atom I is
given by
Sinclair :ref:`(Finnis) <Finnis1>`. Style *eam/he* is similar to
*eam/fs* except that it allows for negative electron density in
order to capture the behavior of helium in metals :ref:`(Zhou6) <Zhou6>`.
The total energy Ei of an atom I is given by
.. math::
@ -355,36 +360,36 @@ electron density at an atomic site depending on the identity of the
element at that atomic site.
The associated :doc:`pair_coeff <pair_coeff>` command for style *eam/fs*
reads a DYNAMO *setfl* file that has been extended to include
additional rho_alpha_beta arrays of tabulated values. A discussion of
how FS EAM differs from conventional EAM alloy potentials is given in
:ref:`(Ackland1) <Ackland1>`. An example of such a potential is the same
author's Fe-P FS potential :ref:`(Ackland2) <Ackland2>`. Note that while FS
potentials always specify the embedding energy with a square root
or *eam/he* reads a DYNAMO *setfl* file that has been extended to include
additional :math:`\rho_{\alpha\beta}` arrays of tabulated values. A
discussion of how FS EAM differs from conventional EAM alloy potentials is
given in :ref:`(Ackland1) <Ackland1>`. An example of such a potential is the
same author's Fe-P FS potential :ref:`(Ackland2) <Ackland2>`. Note that while
FS potentials always specify the embedding energy with a square root
dependence on the total density, the implementation in LAMMPS does not
require that; the user can tabulate any functional form desired in the
FS potential files.
For style *eam/fs*\ , the form of the pair_coeff command is exactly the
same as for style *eam/alloy*\ , e.g.
For style *eam/fs* and *eam/he* the form of the pair_coeff command is exactly
the same as for style *eam/alloy*\ , e.g.
.. code-block:: LAMMPS
pair_coeff * * NiAlH_jea.eam.fs Ni Ni Ni Al
where there are N additional arguments after the filename, where N is
with N additional arguments after the filename, where N is
the number of LAMMPS atom types. See the :doc:`pair_coeff <pair_coeff>`
doc page for alternate ways to specify the path for the potential
file. The N values determine the mapping of LAMMPS atom types to EAM
elements in the file, as described above for style *eam/alloy*\ . As
with *eam/alloy*\ , if a mapping value is NULL, the mapping is not
performed. This can be used when an *eam/fs* potential is used as
part of the *hybrid* pair style. The NULL values are used as
performed. This can be used when an *eam/fs* or *eam/he* potential is
used as part of a *hybrid* pair style. The NULL values are used as
placeholders for atom types that will be used with other potentials.
FS EAM files include more information than the DYNAMO *setfl* format
files read by *eam/alloy*\ , in that i,j density functionals for all
pairs of elements are included as needed by the Finnis/Sinclair
FS EAM and HE EAM files include more information than the DYNAMO *setfl*
format files read by *eam/alloy*\ , in that i,j density functionals for
all pairs of elements are included as needed by the Finnis/Sinclair
formulation of the EAM.
FS EAM files in the *potentials* directory of the LAMMPS distribution
@ -417,6 +422,45 @@ eV-Angstroms) as in EAM *setfl* files. Note that in Finnis/Sinclair,
the phi(r) arrays are still symmetric, so only phi arrays for i >= j
are listed.
HE EAM files in the *potentials* directory of the LAMMPS distribution
have an ".eam.he" suffix. They are formatted as follows:
* lines 1,2,3 = comments (ignored)
* line 4: Nelements Element1 Element2 ... ElementN
* line 5: Nrho, drho, Nr, dr, cutoff, rhomax
The 5-line header section is mostly identical to an EAM *setfl* file
except that line 5 lists an additional value rhomax. Unlike *setfl*
files where embedding energies F(rho) are always defined between rho = 0
and rho = (Nrho -1)drho, F(rho) in HE EAM files are defined between
rho = rhomin and rho = rhomax. Since drho = (rhomax - rhomin)/(Nrho - 1),
rhomin = rhomax - (Nrho - 1)drho. The embedding energies F(rho) are
listed for rho = rhomin, rhomin + drho, rhomin + 2drho, ..., rhomax.
This gives users additional flexibility to define a negative rhomin and
therefore an embedding energy function that works for both positive and
negative electron densities.
Following the header are Nelements sections, one for each element :math:`\beta`,
each with the following format:
* line 1 = atomic number, mass, lattice constant, lattice type (e.g. FCC)
* embedding function F(rho) (Nrho values)
* density function :math:`\rho_{1\beta} (r)` for element :math:`\beta` at element 1 (Nr values)
* density function :math:`\rho_{2\beta} (r)` for element :math:`\beta` at element 2
* ...
* density function :math:`\rho_{N_{elem}\beta} (r)` for element :math:`\beta` at element :math:`N_{elem}`
The units of these quantities in line 1 are the same as for *setfl*
files. Note that the rho(r) arrays in Finnis/Sinclair can be
asymmetric (:math:`\rho_{\alpha\beta} (r) \neq \rho_{\beta\alpha} (r)` )
so there are Nelements\^2 of them listed in the file.
Following the Nelements sections, Nr values for each pair potential
phi(r) array are listed in the same manner (r\*phi, units of
eV-Angstroms) as in EAM *setfl* files. Note that in Finnis/Sinclair,
the phi(r) arrays are still symmetric, so only phi arrays for i >= j
are listed.
----------
.. include:: accel_styles.rst
@ -480,6 +524,10 @@ Daw, Baskes, Phys Rev B, 29, 6443 (1984).
**(Finnis)** Finnis, Sinclair, Philosophical Magazine A, 50, 45 (1984).
.. _Zhou6:
**(Zhou6)** Zhou, Bartelt, Sills, Physical Review B, 38, 1 (2021).
.. _Stukowski:
**(Stukowski)** Stukowski, Sadigh, Erhart, Caro; Modeling Simulation

12008
potentials/PdHHe.eam.he Normal file

File diff suppressed because it is too large Load Diff

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@ -63,6 +63,8 @@ PairEAM::PairEAM(LAMMPS *lmp) : Pair(lmp)
z2r = nullptr;
scale = nullptr;
rhomax = rhomin = 0.0;
frho_spline = nullptr;
rhor_spline = nullptr;
z2r_spline = nullptr;

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@ -42,7 +42,7 @@ class PairEAM : public Pair {
// potentials in spline form used for force computation
double dr,rdr,drho,rdrho,rhomax;
double dr,rdr,drho,rdrho,rhomax,rhomin;
double ***rhor_spline,***frho_spline,***z2r_spline;
PairEAM(class LAMMPS *);

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@ -34,6 +34,7 @@ PairEAMFS::PairEAMFS(LAMMPS *lmp) : PairEAM(lmp)
{
one_coeff = 1;
manybody_flag = 1;
he_flag = 0;
}
/* ----------------------------------------------------------------------
@ -118,7 +119,8 @@ void PairEAMFS::read_file(char *filename)
// read potential file
if (comm->me == 0) {
PotentialFileReader reader(lmp, filename, "eam/fs", unit_convert_flag);
PotentialFileReader reader(lmp, filename, he_flag ? "eam/he" : "eam/fs",
unit_convert_flag);
// transparently convert units for supported conversions
@ -149,12 +151,14 @@ void PairEAMFS::read_file(char *filename)
//
values = reader.next_values(5);
if (he_flag) values = reader.next_values(6);
else values = reader.next_values(5);
file->nrho = values.next_int();
file->drho = values.next_double();
file->nr = values.next_int();
file->dr = values.next_double();
file->cut = values.next_double();
if (he_flag) rhomax = values.next_double();
if ((file->nrho <= 0) || (file->nr <= 0) || (file->dr <= 0.0))
error->one(FLERR,"Invalid EAM potential file");
@ -202,6 +206,7 @@ void PairEAMFS::read_file(char *filename)
MPI_Bcast(&file->nr, 1, MPI_INT, 0, world);
MPI_Bcast(&file->dr, 1, MPI_DOUBLE, 0, world);
MPI_Bcast(&file->cut, 1, MPI_DOUBLE, 0, world);
MPI_Bcast(&rhomax, 1, MPI_DOUBLE, 0, world);
// allocate memory on other procs
if (comm->me != 0) {
@ -255,7 +260,8 @@ void PairEAMFS::file2array()
nr = fs->nr;
drho = fs->drho;
dr = fs->dr;
rhomax = (nrho-1) * drho;
if (he_flag) rhomin = rhomax - (nrho-1) * drho;
else rhomax = (nrho-1) * drho;
// ------------------------------------------------------------------
// setup frho arrays

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@ -35,6 +35,7 @@ class PairEAMFS : virtual public PairEAM {
protected:
void read_file(char *);
void file2array();
int he_flag;
};
}

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@ -0,0 +1,238 @@
/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
https://lammps.sandia.gov/, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
/* ----------------------------------------------------------------------
Contributing authors: Xiaowng Zhou (Sandia)
------------------------------------------------------------------------- */
#include "pair_eam_he.h"
#include "atom.h"
#include "comm.h"
#include "error.h"
#include "force.h"
#include "memory.h"
#include "neighbor.h"
#include "neigh_list.h"
#include "update.h"
using namespace LAMMPS_NS;
/* ---------------------------------------------------------------------- */
PairEAMHE::PairEAMHE(LAMMPS *lmp) : PairEAMFS(lmp), PairEAM(lmp)
{
he_flag = 1;
}
void PairEAMHE::compute(int eflag, int vflag)
{
int i,j,ii,jj,m,inum,jnum,itype,jtype;
double xtmp,ytmp,ztmp,delx,dely,delz,evdwl,fpair;
double rsq,r,p,rhoip,rhojp,z2,z2p,recip,phip,psip,phi;
double *coeff;
int *ilist,*jlist,*numneigh,**firstneigh;
evdwl = 0.0;
ev_init(eflag,vflag);
// grow energy and fp arrays if necessary
// need to be atom->nmax in length
if (atom->nmax > nmax) {
memory->destroy(rho);
memory->destroy(fp);
memory->destroy(numforce);
nmax = atom->nmax;
memory->create(rho,nmax,"pair:rho");
memory->create(fp,nmax,"pair:fp");
memory->create(numforce,nmax,"pair:numforce");
}
double **x = atom->x;
double **f = atom->f;
int *type = atom->type;
int nlocal = atom->nlocal;
int nall = nlocal + atom->nghost;
int newton_pair = force->newton_pair;
inum = list->inum;
ilist = list->ilist;
numneigh = list->numneigh;
firstneigh = list->firstneigh;
// zero out density
if (newton_pair) {
for (i = 0; i < nall; i++) rho[i] = 0.0;
} else for (i = 0; i < nlocal; i++) rho[i] = 0.0;
// rho = density at each atom
// loop over neighbors of my atoms
for (ii = 0; ii < inum; ii++) {
i = ilist[ii];
xtmp = x[i][0];
ytmp = x[i][1];
ztmp = x[i][2];
itype = type[i];
jlist = firstneigh[i];
jnum = numneigh[i];
for (jj = 0; jj < jnum; jj++) {
j = jlist[jj];
j &= NEIGHMASK;
delx = xtmp - x[j][0];
dely = ytmp - x[j][1];
delz = ztmp - x[j][2];
rsq = delx*delx + dely*dely + delz*delz;
if (rsq < cutforcesq) {
jtype = type[j];
p = sqrt(rsq)*rdr + 1.0;
m = static_cast<int> (p);
m = MIN(m,nr-1);
p -= m;
p = MIN(p,1.0);
coeff = rhor_spline[type2rhor[jtype][itype]][m];
rho[i] += ((coeff[3]*p + coeff[4])*p + coeff[5])*p + coeff[6];
if (newton_pair || j < nlocal) {
coeff = rhor_spline[type2rhor[itype][jtype]][m];
rho[j] += ((coeff[3]*p + coeff[4])*p + coeff[5])*p + coeff[6];
}
}
}
}
// communicate and sum densities
if (newton_pair) comm->reverse_comm_pair(this);
// fp = derivative of embedding energy at each atom
// phi = embedding energy at each atom
// if rho > rhomax or rho < rhomin (i.e., table is exceeded),
// add linear term to conserve energy
for (ii = 0; ii < inum; ii++) {
i = ilist[ii];
p = (rho[i]-rhomin)*rdrho + 1.0;
m = static_cast<int> (p);
if (m < 2) {
m = 2;
} else if (m > nrho-1) {
m = nrho-1;
}
p -= m;
if (p < -1.0) {
p = -1.0;
} else if (p > 1.0) {
p = 1.0;
}
coeff = frho_spline[type2frho[type[i]]][m];
fp[i] = (coeff[0]*p + coeff[1])*p + coeff[2];
if (eflag) {
phi = ((coeff[3]*p + coeff[4])*p + coeff[5])*p + coeff[6];
if (rho[i] < rhomin) {
phi += fp[i] * (rho[i]-rhomin);
} else if (rho[i] > rhomax) {
phi += fp[i] * (rho[i]-rhomax);
}
phi *= scale[type[i]][type[i]];
if (eflag_global) eng_vdwl += phi;
if (eflag_atom) eatom[i] += phi;
}
}
// communicate derivative of embedding function
comm->forward_comm_pair(this);
embedstep = update->ntimestep;
// compute forces on each atom
// loop over neighbors of my atoms
for (ii = 0; ii < inum; ii++) {
i = ilist[ii];
xtmp = x[i][0];
ytmp = x[i][1];
ztmp = x[i][2];
itype = type[i];
jlist = firstneigh[i];
jnum = numneigh[i];
numforce[i] = 0;
for (jj = 0; jj < jnum; jj++) {
j = jlist[jj];
j &= NEIGHMASK;
delx = xtmp - x[j][0];
dely = ytmp - x[j][1];
delz = ztmp - x[j][2];
rsq = delx*delx + dely*dely + delz*delz;
if (rsq < cutforcesq) {
++numforce[i];
jtype = type[j];
r = sqrt(rsq);
p = r*rdr + 1.0;
m = static_cast<int> (p);
m = MIN(m,nr-1);
p -= m;
p = MIN(p,1.0);
// rhoip = derivative of (density at atom j due to atom i)
// rhojp = derivative of (density at atom i due to atom j)
// phi = pair potential energy
// phip = phi'
// z2 = phi * r
// z2p = (phi * r)' = (phi' r) + phi
// psip needs both fp[i] and fp[j] terms since r_ij appears in two
// terms of embed eng: Fi(sum rho_ij) and Fj(sum rho_ji)
// hence embed' = Fi(sum rho_ij) rhojp + Fj(sum rho_ji) rhoip
// scale factor can be applied by thermodynamic integration
coeff = rhor_spline[type2rhor[itype][jtype]][m];
rhoip = (coeff[0]*p + coeff[1])*p + coeff[2];
coeff = rhor_spline[type2rhor[jtype][itype]][m];
rhojp = (coeff[0]*p + coeff[1])*p + coeff[2];
coeff = z2r_spline[type2z2r[itype][jtype]][m];
z2p = (coeff[0]*p + coeff[1])*p + coeff[2];
z2 = ((coeff[3]*p + coeff[4])*p + coeff[5])*p + coeff[6];
recip = 1.0/r;
phi = z2*recip;
phip = z2p*recip - phi*recip;
psip = fp[i]*rhojp + fp[j]*rhoip + phip;
fpair = -scale[itype][jtype]*psip*recip;
f[i][0] += delx*fpair;
f[i][1] += dely*fpair;
f[i][2] += delz*fpair;
if (newton_pair || j < nlocal) {
f[j][0] -= delx*fpair;
f[j][1] -= dely*fpair;
f[j][2] -= delz*fpair;
}
if (eflag) evdwl = scale[itype][jtype]*phi;
if (evflag) ev_tally(i,j,nlocal,newton_pair,
evdwl,0.0,fpair,delx,dely,delz);
}
}
}
if (vflag_fdotr) virial_fdotr_compute();
}

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@ -0,0 +1,65 @@
/* -*- c++ -*- ----------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#ifdef PAIR_CLASS
PairStyle(eam/he,PairEAMHE)
#else
#ifndef LMP_PAIR_EAM_HE_H
#define LMP_PAIR_EAM_HE_H
#include "pair_eam_fs.h"
namespace LAMMPS_NS {
class PairEAMHE : public PairEAMFS {
public:
PairEAMHE(class LAMMPS *);
virtual ~PairEAMHE() {}
protected:
void compute(int, int);
};
}
#endif
#endif
/* ERROR/WARNING messages:
E: Incorrect args for pair coefficients
Self-explanatory. Check the input script or data file.
E: No matching element in EAM potential file
The EAM potential file does not contain elements that match the
requested elements.
E: Cannot open EAM potential file %s
The specified EAM potential file cannot be opened. Check that the
path and name are correct.
E: Incorrect element names in EAM potential file
The element names in the EAM file do not match those requested.
E: Invalid EAM potential file
UNDOCUMENTED
*/

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@ -0,0 +1,89 @@
---
lammps_version: 24 Dec 2020
date_generated: Wed Jan 13 22:16:02 202
epsilon: 5e-12
prerequisites: ! |
pair eam/he
pre_commands: ! ""
post_commands: ! ""
input_file: in.metal
pair_style: eam/he
pair_coeff: ! |
* * PdHHe.eam.he Pd He
extract: ! ""
natoms: 32
init_vdwl: -15.3146152609365
init_coul: 0
init_stress: ! |2-
1.0127679615895376e+02 9.3559970433415444e+01 9.1432412459889193e+01 4.0035576925472673e+00 -9.7686923241135581e-01 2.8980241224200443e+00
init_forces: ! |2
1 1.2005847856522014e+00 2.2040396377071869e+00 -1.0711805842453261e+00
2 -1.5935390465573379e-01 -8.3057674140080351e-01 3.5885201320339977e-01
3 -8.3922102051696701e-02 4.1053523947712707e+00 3.2379570522514384e-01
4 9.6680271004438867e-01 -6.0272944088190550e-01 1.7088406391974090e-01
5 -1.5118032750014099e-01 4.8152982355843301e+00 -2.3396251503834162e-01
6 6.9769996639420007e-01 2.1986594375389688e+00 3.7782787462812606e-01
7 -1.9293747297385899e+00 2.3965302429887498e+00 5.3526894592078611e-01
8 -5.7898968354416502e-01 -1.7424269600946102e-01 4.6553500563912831e-01
9 -1.9170501143342826e+00 -1.5811474204082574e+00 -1.5153955037081890e+00
10 -1.0389874633978984e+00 -1.0136677465869111e+00 -2.8606245342679020e+00
11 -6.8937210559650852e-01 -4.9861949626741522e+00 1.7468278589450823e+00
12 -1.0247245841335400e+00 -2.9144176183755111e+00 1.0162869145592908e+00
13 8.8392380716960872e-01 -2.1032444766660849e-01 -4.5408294970791102e-01
14 3.9708226038326155e-01 -7.8680161984030961e-01 -1.9977901194159892e-01
15 -7.8687732774064545e-02 -2.1157301146984339e-01 3.4042801915998766e-01
16 4.0325457730206029e+00 -2.3548979291247609e+00 9.2949967143894952e-01
17 7.4997446543261548e-01 2.0845833390037725e+00 1.7238817466288217e+00
18 -2.1412087035667221e-01 -5.6906054172322229e-01 -5.2781467006833294e-01
19 -3.0256742141254084e-01 6.0688322127888294e-01 -9.1127162282408275e-02
20 2.3174481031809935e-01 3.0892939020181726e-01 -3.7137738763066941e-01
21 1.1702211057625094e+00 4.2920154821923315e+00 1.3460541385609648e+00
22 3.8027613826247031e-02 4.3239633632972230e-01 -3.8188409283423194e-02
23 1.4000432801696054e+00 1.0040601640391840e+00 -2.4122350019076917e+00
24 -1.5604155772955447e-01 3.4572668285914510e-01 -2.8556703863036959e-01
25 -2.9449464597969849e-01 -3.4630638648128692e-01 1.1805865362173559e-01
26 -1.8108866036308173e+00 -1.8950909756776353e+00 3.3196635723271326e+00
27 -7.7538420123902196e-01 -1.2937697587184989e+00 -9.6725767253143236e-01
28 -3.5707629120214823e-01 -2.8995606245962768e-01 -1.2007211500278167e-01
29 3.6987879522593697e-01 -4.9287949481541249e-01 5.4972323630766012e-02
30 1.1712105233973889e-01 -6.9110122964840481e-01 9.5437848811806628e-02
31 1.9388288555816860e-01 -2.0146460156127194e-01 -2.0863139798712499e-01
32 -8.8731897202011578e-01 -3.3482718789714783e+00 -1.5659784019873610e+00
run_vdwl: -15.3236335310355
run_coul: 0
run_stress: ! |2-
1.0125543392557182e+02 9.3539230810233988e+01 9.1388997082229878e+01 4.0040941706030253e+00 -9.7826716756924303e-01 2.9018476991088571e+00
run_forces: ! |2
1 1.1949883047712304e+00 2.2060858143622002e+00 -1.0733885545165418e+00
2 -1.5963527935293531e-01 -8.3496477000211577e-01 3.6354718487355586e-01
3 -8.4458087648033864e-02 4.1335068175946956e+00 3.2562083254074076e-01
4 9.7516402928123347e-01 -6.1050193540570252e-01 1.7035859794498676e-01
5 -1.5399721579534215e-01 4.8120569088649683e+00 -2.3294021119313149e-01
6 6.9813149221746262e-01 2.1977391468237610e+00 3.7752101367086355e-01
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31 1.9349589373949760e-01 -1.9991899011439837e-01 -2.0661879538790651e-01
32 -8.9145801252527535e-01 -3.3499831182258872e+00 -1.5666124396675569e+00
...

View File

@ -0,0 +1,90 @@
---
lammps_version: 24 Dec 2020
date_generated: Wed Jan 13 22:16:02 202
epsilon: 7.5e-12
prerequisites: ! |
pair eam/he
pre_commands: ! |
variable units index real
post_commands: ! ""
input_file: in.metal
pair_style: eam/he
pair_coeff: ! |
* * PdHHe.eam.he Pd He
extract: ! ""
natoms: 32
init_vdwl: -353.163435640974
init_coul: 0
init_stress: ! |2-
2.3354985203865667e+03 2.1575442826183294e+03 2.1084816277194832e+03 9.2324238343315059e+01 -2.2527140800613445e+01 6.6830027278251166e+01
init_forces: ! |2
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2 -3.6747885266547895e+00 -1.9153555643332677e+01 8.2753244342250110e+00
3 -1.9352897465461538e+00 9.4671680061884146e+01 7.4669067263334208e+00
4 2.2295001268309708e+01 -1.3899271805198000e+01 3.9406803293404700e+00
5 -3.4863013501526918e+00 1.1104342091130563e+02 -5.3953040422049119e+00
6 1.6089344262331657e+01 5.0702293693679884e+01 8.7129182164280419e+00
7 -4.4492440494497494e+01 5.5265303098423985e+01 1.2343595755584241e+01
8 -1.3351819967863772e+01 -4.0181322292175965e+00 1.0735492808756252e+01
9 -4.4208228097061294e+01 -3.6462127564548197e+01 -3.4945852267642280e+01
10 -2.3959621310073842e+01 -2.3375734739886113e+01 -6.5967572243087659e+01
11 -1.5897299220341502e+01 -1.1498439326030027e+02 4.0282809435768357e+01
12 -2.3630711483916183e+01 -6.7208070295011467e+01 2.3436134191253181e+01
13 2.0383768267501306e+01 -4.8501972313137021e+00 -1.0471402111803629e+01
14 9.1569349225997474e+00 -1.8144077307608963e+01 -4.6070136940518891e+00
15 -1.8145823173352931e+00 -4.8789897980772752e+00 7.8504570168111005e+00
16 9.2992719393484805e+01 -5.4305239084580101e+01 2.1434772718702309e+01
17 1.7294822908857860e+01 4.8071636233680366e+01 3.9753659488339430e+01
18 -4.9377448227825411e+00 -1.3122848506373817e+01 -1.2171696062028875e+01
19 -6.9773708472871210e+00 1.3995060261579386e+01 -2.1014423910442734e+00
20 5.3441625538361990e+00 7.1240813402889511e+00 -8.5641664449490893e+00
21 2.6985941150269763e+01 9.8976233335854843e+01 3.1040747418937880e+01
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26 -4.1760039256471202e+01 -4.3701838304071202e+01 7.6553264473163750e+01
27 -1.7880785366498504e+01 -2.9835040915646299e+01 -2.2305492953037302e+01
28 -8.2343753100058397e+00 -6.6865459861976770e+00 -2.7689288915546530e+00
29 8.5296080813687887e+00 -1.1366071741285882e+01 1.2676919627309815e+00
30 2.7008757664122220e+00 -1.5937173770267322e+01 2.2008491889792485e+00
31 4.4710457826753673e+00 -4.6458843160683996e+00 -4.8111545762194012e+00
32 -2.0462062632899592e+01 -7.7212987730343386e+01 -3.6112321671970648e+01
run_vdwl: -353.230598025017
run_coul: 0
run_stress: ! |2-
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run_forces: ! |2
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2 -3.6751057733124783e+00 -1.9167341173087838e+01 8.2931871358142466e+00
3 -1.9458273195805660e+00 9.4745013001500453e+01 7.4613246126708113e+00
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5 -3.5611755339443869e+00 1.1098583048019351e+02 -5.3589546434886657e+00
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7 -4.4532333454110486e+01 5.5329574524982760e+01 1.2275125678150991e+01
8 -1.3365798458276837e+01 -4.0311665119688325e+00 1.0738893622536514e+01
9 -4.4219909611484340e+01 -3.6506027825529728e+01 -3.4970646977778003e+01
10 -2.3838805073020580e+01 -2.3388505371089686e+01 -6.5920271795280030e+01
11 -1.5863107119046816e+01 -1.1501474143750076e+02 4.0236861649778703e+01
12 -2.3597639915238879e+01 -6.7219256881236532e+01 2.3428611972869568e+01
13 2.0372282061050672e+01 -4.8599967847476790e+00 -1.0435173423332810e+01
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15 -1.8187982708833512e+00 -4.8633248636475823e+00 7.8331412550634454e+00
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21 2.6939069851048053e+01 9.8929039552947501e+01 3.1025635765431552e+01
22 8.7771899094057326e-01 9.9759331856305540e+00 -8.7675403015085085e-01
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24 -3.5964621834607793e+00 7.9732311561843838e+00 -6.5839559665478173e+00
25 -6.7879787318782503e+00 -7.9847098239766732e+00 2.7230073490545976e+00
26 -4.1688921616984544e+01 -4.3653314583134815e+01 7.6583618010794297e+01
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28 -8.2430574229283415e+00 -6.6852368720976481e+00 -2.7583576098041354e+00
29 8.5269603298722565e+00 -1.1364005508745327e+01 1.2731276160949609e+00
30 2.6994843727982003e+00 -1.5940803816308822e+01 2.2046514286792602e+00
31 4.4654048480426765e+00 -4.6271939008948024e+00 -4.7862215560852475e+00
32 -2.0559378611212470e+01 -7.7265660088866639e+01 -3.6131658295360147e+01
...