Beispiel #1
0
    atoms = Atoms([
        Atom('Pd', [5.078689759346383, 5.410678028467162, 4.000000000000000]),
        Atom('Pd', [7.522055777772603, 4.000000000000000, 4.000000000000000]),
        Atom('Pd', [7.522055777772603, 6.821356056934325, 4.000000000000000]),
        Atom('Pd', [6.707600438297196, 5.410678028467162, 6.303627574066606]),
        Atom('N',  [4.807604264052752, 5.728625577716107, 5.919407072553396]),
        Atom('H',  [4.000000000000000, 5.965167390141987, 6.490469524180266]),
    ])

    constraint = FixAtoms(mask=[a.symbol == 'Pd' for a in atoms])
    atoms.set_constraint(constraint)
    atoms.center(vacuum=4.0)
    atoms.set_pbc(False)
    return atoms

def get_calculator():
    calc = GPAW(gpts=(64, 64, 64), #h=0.18, gives 64x60x60
                mode='lcao', 
                basis='szp(dzp)',
                nbands=-5,
                xc='LDA',
                width=0.1,
                mixer=Mixer(beta=0.1, nmaxold=5, weight=50.0),
                poissonsolver=PoissonSolver(nn='M', relax='GS'),
                convergence={'energy': 1e-4, 'bands': -3},
                stencils=(3, 3),
                txt='nanoparticle.txt')
    return calc

run_test(get_atoms, get_calculator, name, fmax=0.05, steps=200)
Beispiel #2
0
name = 'CO_Au111'


def get_atoms():
    zpos = cos(134.3 / 2.0 * pi / 180.0) * 1.197
    xpos = sin(134.3 / 2.0 * pi / 180.0) * 1.19
    no2 = Atoms('CO',
                positions=[(-xpos + 1.2, 0, -zpos),
                           (-xpos + 1.2, -1.1, -zpos)])

    # Surface slab
    slab = fcc111('Au', size=(2, 2, 4), vacuum=2 * 5, orthogonal=True)
    slab.center()
    add_adsorbate(slab, no2, 1.5, 'bridge')
    slab.set_pbc((True, True, False))

    #constraints
    constraint = FixAtoms(mask=[(a.tag == 4) or (a.tag == 3) or (a.tag == 2)
                                for a in slab])
    slab.set_constraint(constraint)
    return slab


def get_calculator():
    calc = EMT()
    return calc


run_test(get_atoms, get_calculator, name, steps=200)
Beispiel #3
0
Datei: neb.py Projekt: jboes/ase
        i = 0
        for image in neb.images[1:-1]:
            if not mpi.parallel or mpi.rank // (mpi.size // 3) == i:
                image.set_calculator(calc)
            i += 1
    neb.set_calculator = set_calculator

    return neb

    
def get_calculator_emt():
    return EMT()

    
def get_calculator_gpaw():
    if mpi.parallel:
        assert mpi.size % 3 == 0
        s = mpi.size // 3
        r0 = mpi.rank // s * s
        comm = range(r0, r0 + s)
    else:
        comm = mpi.world
    calc = GPAW(h=0.25,
                kpts=(2, 2, 1),
                communicator=comm,
                txt='neb-%d.txt' % r0)
    return calc

run_test(get_atoms, get_calculator_emt, name + '-emt')
run_test(get_atoms, get_calculator_gpaw, name + '-gpaw')
Beispiel #4
0
from math import sin, cos, pi
from ase import Atoms
from ase.calculators.emt import EMT
from ase.constraints import FixAtoms
from ase.optimize.test import run_test
from ase.build import fcc111, add_adsorbate

name = 'CO_Au111'

def get_atoms():
    zpos = cos(134.3/2.0*pi/180.0)*1.197
    xpos = sin(134.3/2.0*pi/180.0)*1.19
    no2 =Atoms('CO', positions=[(-xpos+1.2,0,-zpos), (-xpos+1.2,-1.1,-zpos)])

    # Surface slab
    slab =fcc111('Au', size=(2, 2, 4),vacuum=2*5, orthogonal = True )
    slab.center()
    add_adsorbate(slab,no2,1.5,'bridge')
    slab.set_pbc((True,True,False))

    #constraints
    constraint = FixAtoms(mask=[(a.tag == 4) or (a.tag == 3) or (a.tag==2) for a in slab])
    slab.set_constraint(constraint)
    return slab

def get_calculator():
    calc = EMT()
    return calc

run_test(get_atoms, get_calculator, name, steps=200)
Beispiel #5
0
Datei: neb.py Projekt: lqcata/ase
            if not mpi.parallel or mpi.rank // (mpi.size // 3) == i:
                image.set_calculator(calc)
            i += 1

    neb.set_calculator = set_calculator

    return neb


def get_calculator_emt():
    return EMT()


def get_calculator_gpaw():
    if mpi.parallel:
        assert mpi.size % 3 == 0
        s = mpi.size // 3
        r0 = mpi.rank // s * s
        comm = range(r0, r0 + s)
    else:
        comm = mpi.world
    calc = GPAW(h=0.25,
                kpts=(2, 2, 1),
                communicator=comm,
                txt='neb-%d.txt' % r0)
    return calc


run_test(get_atoms, get_calculator_emt, name + '-emt')
run_test(get_atoms, get_calculator_gpaw, name + '-gpaw')
Beispiel #6
0
                        (0.0582,    0.0582,    9.4227),
                        (2.5965,   -0.2051,    9.4199),
                        (5.1282,    0.0663,    9.4037),
                        (7.6808,   -0.0157,    9.4235),
                        (-0.2051,   2.5965,    9.4199),
                        (2.1913,    2.1913,    9.6123),
                        (5.0046,    2.5955,    9.4873),
                        (7.5409,    2.5336,    9.4126),
                        (0.0663,    5.1282,    9.4037),
                        (2.5955,    5.0046,    9.4873),
                        (5.3381,    5.3381,    9.6106),
                        (7.8015,    5.0682,    9.4237),
                        (-0.0157,   7.6808,    9.4235),
                        (2.5336,    7.5409,    9.4126),
                        (5.0682,    7.8015,    9.4237),
                        (7.6155,    7.6155,    9.4317)])
    c2=Atoms('C2', [(3.2897,    3.2897,   10.6627),
                    (4.2113,    4.2113,   10.6493)])
    srf.extend(c2)
    srf.pbc=(1, 1, 0)
    srf.set_cell([ 10.2106, 10.2106, 20.6572],scale_atoms=False)

    mask=[a.index < 32  for a in srf]
    c1 = FixedPlane(-1, (1/np.sqrt(2), 1/np.sqrt(2), 1))
    c2 = FixedPlane(-2, (1/np.sqrt(2), 1/np.sqrt(2), 1))
    constraint = FixAtoms(mask=mask)
    srf.set_constraint([constraint, c1, c2])
    return srf

run_test(get_atoms, get_calculator, 'C2_Cu100')
Beispiel #7
0
        Atom('Cu', [      8.433333333333335,      5.009870513769302,     -2.146500000000000]),
        Atom('Cu', [      9.771531840491031,      4.244150023558828,     -0.202086055768371]),
        Atom('Cu', [     11.133333333333335,      5.009870513769302,     -2.146500000000000]),
        Atom('Cu', [      3.021531840490714,      6.582418613776583,     -0.202086055768197]),
        Atom('Cu', [      4.383333333333334,      7.348139103987287,     -2.146500000000000]),
        Atom('Cu', [      5.721531840490814,      6.582418613776629,     -0.202086055768203]),
        Atom('Cu', [      7.083333333333333,      7.348139103987287,     -2.146500000000000]),
        Atom('Cu', [      8.421531840490985,      6.582418613776876,     -0.202086055768357]),
        Atom('Cu', [      9.783333333333335,      7.348139103987287,     -2.146500000000000]),
        Atom('Cu', [     11.121531840490929,      6.582418613776676,     -0.202086055768221]),
        Atom('Cu', [     12.483333333333334,      7.348139103987287,     -2.146500000000000]),
    ])
    mask = [a.position[2] < -1 for a in slab]
    slab.set_constraint(FixAtoms(mask=mask))

    h = 1.85
    d = 1.10

    molecule = Atoms('2N', positions=[(0., 0., h),
                                      (0., 0., h + d)])
    molecule.set_calculator(EMT())
    slab.extend(molecule)
    return slab

    
def get_calculator():
    return EMT()

run_test(get_atoms_surf, get_calculator, name + '-surf', steps=200)
run_test(get_atoms_adsorbate, get_calculator, name + '-N2', steps=200)
Beispiel #8
0
        Atom('Cu', [     11.133333333333335,      5.009870513769302,     -2.146500000000000]),
        Atom('Cu', [      3.021531840490714,      6.582418613776583,     -0.202086055768197]),
        Atom('Cu', [      4.383333333333334,      7.348139103987287,     -2.146500000000000]),
        Atom('Cu', [      5.721531840490814,      6.582418613776629,     -0.202086055768203]),
        Atom('Cu', [      7.083333333333333,      7.348139103987287,     -2.146500000000000]),
        Atom('Cu', [      8.421531840490985,      6.582418613776876,     -0.202086055768357]),
        Atom('Cu', [      9.783333333333335,      7.348139103987287,     -2.146500000000000]),
        Atom('Cu', [     11.121531840490929,      6.582418613776676,     -0.202086055768221]),
        Atom('Cu', [     12.483333333333334,      7.348139103987287,     -2.146500000000000]),
    ])
    mask = [a.position[2] < -1 for a in slab]
    slab.set_constraint(FixAtoms(mask=mask))

    a = 2.70
    c = 1.59 * a
    h = 1.85
    d = 1.10
    x = slab.positions[0, 2] / (c / 2) * 100

    molecule = Atoms('2N', positions=[(0., 0., h),
                                      (0., 0., h + d)])
    molecule.set_calculator(EMT())
    slab.extend(molecule)
    return slab

def get_calculator():
    return EMT()

run_test(get_atoms_surf, get_calculator, name + '-surf', steps=200)
run_test(get_atoms_adsorbate, get_calculator, name + '-N2', steps=200)
Beispiel #9
0
            [5.00000011, 6.30002353, 5.9163716],
            [5.88571848, 5.0122839, 6.82246859],
            [5.88625613, 5.01308931, 5.01214155],
            [7.14329342, 7.18115393, 6.81640316],
            [7.14551332, 7.17200869, 5.00879027],
            [8.41609966, 5.00661165, 5.02355167],
            [8.41971183, 5.0251482, 6.83462168],
            [9.69568096, 7.18645894, 6.8078633],
            [9.68914668, 7.16663649, 5.00000011],
            [10.95518898, 5.02163182, 6.8289018],
            [11.83752486, 6.29836826, 5.90274952],
            [10.94464142, 5.00000011, 5.01802495],
        ],
    )
    return atoms


def get_calculator():
    calc = GPAW(
        h=0.2,
        mode="lcao",
        basis="szp(dzp)",
        mixer=Mixer(beta=0.1, nmaxold=5, weight=50.0),
        poissonsolver=PoissonSolver(nn="M", relax="GS"),
        txt="C5H12.txt",
    )
    return calc


run_test(get_atoms, get_calculator, name + "-gpaw")
Beispiel #10
0
from ase.calculators.emt import EMT
from ase.lattice.cubic import FaceCenteredCubic
from ase.optimize.test import run_test

name = 'Cu_bulk'

def get_atoms():
    atoms = FaceCenteredCubic(directions=[[1,-1,0], [1,1,0], [0,0,1]],
                              size=(3,3,3), symbol='Cu', pbc=(1,1,1))
    atoms.rattle(stdev=0.1,seed=42)
    return atoms

def get_calculator():
    return EMT()

run_test(get_atoms, get_calculator, name, fmax=0.02)
Beispiel #11
0
                         (1.2409, 1.2409, 7.6081), (3.7731, 1.2803, 7.6603),
                         (6.3219, 1.3241, 7.6442), (8.8935, 1.2669, 7.6189),
                         (1.2803, 3.7731, 7.6603), (3.8188, 3.8188, 7.5870),
                         (6.3457, 3.8718, 7.6649), (8.9174, 3.8340, 7.5976),
                         (1.3241, 6.3219, 7.6442), (3.8718, 6.3457, 7.6649),
                         (6.3945, 6.3945, 7.6495), (8.9576, 6.3976, 7.6213),
                         (1.2669, 8.8935, 7.6189), (3.8340, 8.9174, 7.5976),
                         (6.3976, 8.9576, 7.6213), (8.9367, 8.9367, 7.6539),
                         (0.0582, 0.0582, 9.4227), (2.5965, -0.2051, 9.4199),
                         (5.1282, 0.0663, 9.4037), (7.6808, -0.0157, 9.4235),
                         (-0.2051, 2.5965, 9.4199), (2.1913, 2.1913, 9.6123),
                         (5.0046, 2.5955, 9.4873), (7.5409, 2.5336, 9.4126),
                         (0.0663, 5.1282, 9.4037), (2.5955, 5.0046, 9.4873),
                         (5.3381, 5.3381, 9.6106), (7.8015, 5.0682, 9.4237),
                         (-0.0157, 7.6808, 9.4235), (2.5336, 7.5409, 9.4126),
                         (5.0682, 7.8015, 9.4237), (7.6155, 7.6155, 9.4317)])
    c2 = Atoms('C2', [(3.2897, 3.2897, 10.6627), (4.2113, 4.2113, 10.6493)])
    srf.extend(c2)
    srf.pbc = (1, 1, 0)
    srf.set_cell([10.2106, 10.2106, 20.6572], scale_atoms=False)

    mask = [a.index < 32 for a in srf]
    c1 = FixedPlane(-1, (1 / np.sqrt(2), 1 / np.sqrt(2), 1))
    c2 = FixedPlane(-2, (1 / np.sqrt(2), 1 / np.sqrt(2), 1))
    constraint = FixAtoms(mask=mask)
    srf.set_constraint([constraint, c1, c2])
    return srf


run_test(get_atoms, get_calculator, 'C2_Cu100')
Beispiel #12
0
                      [  5.90380523,   5.65545388,   5.91569796],
                      [  7.15617518,   6.52907738,   5.91569796],
                      [  8.41815022,   5.66384716,   5.92196554],
                      [  9.68108996,   6.52891016,   5.91022362],
                      [ 10.93006206,   5.65545388,   5.91569796],
                      [  5.00000011,   6.30002353,   5.9163716 ],
                      [  5.88571848,   5.0122839 ,   6.82246859],
                      [  5.88625613,   5.01308931,   5.01214155],
                      [  7.14329342,   7.18115393,   6.81640316],
                      [  7.14551332,   7.17200869,   5.00879027],
                      [  8.41609966,   5.00661165,   5.02355167],
                      [  8.41971183,   5.0251482 ,   6.83462168],
                      [  9.69568096,   7.18645894,   6.8078633 ],
                      [  9.68914668,   7.16663649,   5.00000011],
                      [ 10.95518898,   5.02163182,   6.8289018 ],
                      [ 11.83752486,   6.29836826,   5.90274952],
                      [ 10.94464142,   5.00000011,   5.01802495]
                  ])
    return atoms

def get_calculator():
    calc = GPAW(h=0.2,
                mode = 'lcao',
                basis = 'szp(dzp)',
                mixer=Mixer(beta=0.1, nmaxold=5, weight=50.0),
                poissonsolver=PoissonSolver(nn='M', relax='GS'),
                txt='C5H12.txt')
    return calc

run_test(get_atoms, get_calculator, name + '-gpaw')