def test_suggest_charges(self):
pd = DefectPhaseDiagram(self.entries, 2.6682, 2.0)
suggested_charges = pd.suggest_charges()
for k in [
"Int_As_mult1", "Int_Ga_mult1", "Sub_As_on_Ga_mult4", "Sub_Ga_on_As_mult4", "Vac_As_mult4",
"Vac_Ga_mult4"
]:
self.assertTrue(
len(suggested_charges[k]) > 0, "Could not find any suggested charges for {} with band_gap of {}".format(
k, pd.band_gap))
pd = DefectPhaseDiagram(self.entries, 2.6682, 1.0)
suggested_charges = pd.suggest_charges()
for k in ["Vac_As_mult4", "Vac_Ga_mult4"]:
self.assertTrue(
len(suggested_charges[k]) > 0, "Could not find any suggested charges for {} with band_gap of {}".format(
k, pd.band_gap))
def test_suggest_charges(self):
pd = DefectPhaseDiagram(self.entries, 2.6682, 2.0)
suggested_charges = pd.suggest_charges()
for k in [
"Int_As_mult1", "Int_Ga_mult1", "Sub_As_on_Ga_mult4",
"Sub_Ga_on_As_mult4", "Vac_As_mult4", "Vac_Ga_mult4"
]:
self.assertTrue(
len(suggested_charges[k]) > 0,
"Could not find any suggested charges for {} with band_gap of {}"
.format(k, pd.band_gap))
pd = DefectPhaseDiagram(self.entries, 2.6682, 1.0)
suggested_charges = pd.suggest_charges()
for k in ["Vac_As_mult4", "Vac_Ga_mult4"]:
self.assertTrue(
len(suggested_charges[k]) > 0,
"Could not find any suggested charges for {} with band_gap of {}"
.format(k, pd.band_gap))
class DefectsThermodynamicsTest(PymatgenTest):
def setUp(self):
self.vbm_val = 2.6682
self.gap = 1.5
self.entries = list(
loadfn(
os.path.join(os.path.dirname(__file__),
"GaAs_test_defentries.json")).values())
for entry in self.entries:
entry.parameters.update({'vbm': self.vbm_val})
self.pd = DefectPhaseDiagram(self.entries, self.vbm_val, self.gap)
self.mu_elts = {
Element("As"): -4.658070555,
Element("Ga"): -3.7317319750000006
}
# make Vac_As (q= -2) only defect test single-stable-charge exceptions
self.extra_entry = DefectEntry(self.entries[5].defect.copy(), 100.)
sep_entries = [
ent for ent in self.entries if not (
ent.name == 'Vac_As_mult4' and ent.charge in [-2, -1, 0, 1, 2])
]
sep_entries.append(self.extra_entry.copy())
self.sep_pd = DefectPhaseDiagram(sep_entries, self.vbm_val, self.gap)
# make Vac_As (q= -2) is incompatible for larger supercell
ls_entries = self.entries[:]
for entry in ls_entries:
if entry.name == 'Vac_As_mult4' and entry.charge == -2.:
entry.parameters['is_compatible'] = False
self.pd_ls_fcTrue = DefectPhaseDiagram(ls_entries,
self.vbm_val,
self.gap,
filter_compatible=True)
self.pd_ls_fcFalse = DefectPhaseDiagram(ls_entries,
self.vbm_val,
self.gap,
filter_compatible=False)
# load complete dos for fermi energy solving
with open(os.path.join(test_dir, "complete_dos.json"), "r") as f:
dos_dict = json.load(f)
self.dos = CompleteDos.from_dict(dos_dict)
def test_good_test_data(self):
self.assertEqual(len(self.entries), 48)
def test_suggest_charges(self):
suggested_charges = self.pd.suggest_charges()
for k in [
"Vac_As_mult4@0-1-2-3-4-5", "Sub_Ga_on_As_mult4@6-7-8-9-10-11",
"Vac_Ga_mult4@12-13-14-15",
"Sub_As_on_Ga_mult4@16-17-18-19-20-21",
"Int_Ga_mult1@22-23-24-25",
"Int_As_mult1@26-27-28-29-30-31-32-33-34",
"Int_As_mult1@35-36-37-38-39-40-41-42-43",
"Int_Ga_mult1@44-45-46-47"
]:
self.assertTrue(
len(suggested_charges[k]) > 0,
"Could not find any suggested charges for {} with band_gap of {}"
.format(k, self.pd.band_gap))
pd = DefectPhaseDiagram(self.entries, 2.6682, 1.0)
suggested_charges = self.pd.suggest_charges()
for k in ["Vac_As_mult4@0-1-2-3-4-5", "Vac_Ga_mult4@12-13-14-15"]:
self.assertTrue(
len(suggested_charges[k]) > 0,
"Could not find any suggested charges for {} with band_gap of {}"
.format(k, pd.band_gap))
#test again but with only one charge state stable for Vac_As
suggested_charges = self.sep_pd.suggest_charges()
self.assertEqual(set(suggested_charges['Vac_As_mult4@0-43']),
set([-4]))
def test_suggest_larger_supercells(self):
suggested_larger_cells = self.pd_ls_fcFalse.suggest_larger_supercells()
self.assertEqual(suggested_larger_cells['Vac_As_mult4@0-1-2-3-4-5'],
[-2])
# raise error if filter_compatibile = True
self.assertRaises(ValueError,
self.pd_ls_fcTrue.suggest_larger_supercells)
def test_entries(self):
all_stable_entries = self.pd.all_stable_entries
self.assertEqual(len(self.pd.defect_types), 8)
self.assertEqual(
len(all_stable_entries),
sum([len(v) for v in self.pd.stable_charges.values()]))
#test again but with only one charge state stable for Vac_As
self.assertEqual(
len(self.sep_pd.transition_level_map['Vac_As_mult4@0-43']), 0)
self.assertEqual(len(self.sep_pd.stable_entries['Vac_As_mult4@0-43']),
1)
self.assertEqual(
len(self.sep_pd.finished_charges['Vac_As_mult4@0-43']), 2)
#
def test_solve_for_fermi_energy(self):
fermi_energy = self.pd.solve_for_fermi_energy(100., self.mu_elts,
self.dos)
self.assertAlmostEqual(fermi_energy, 0.57387314)
fermi_energy = self.pd.solve_for_fermi_energy(1000., self.mu_elts,
self.dos)
self.assertAlmostEqual(fermi_energy, 0.74139553)
def test_solve_for_non_equilibrium_fermi_energy(self):
fermi_energy = self.pd.solve_for_non_equilibrium_fermi_energy(
300., 1000., self.mu_elts, self.dos)
self.assertAlmostEqual(fermi_energy, 0.29500637)
fermi_energy = self.pd.solve_for_non_equilibrium_fermi_energy(
1000., 1000., self.mu_elts, self.dos)
self.assertAlmostEqual(fermi_energy, 0.74139553)
def test_get_dopability_limits(self):
lower_lim, upper_lim = self.pd.get_dopability_limits(self.mu_elts)
self.assertAlmostEqual(lower_lim, -0.39996272)
self.assertAlmostEqual(upper_lim, 1.064193047)
# raise error if defects are negative across gap
bad_mu_elts = self.mu_elts.copy()
bad_mu_elts[Element("Ga")] += 10.
lower_lim, upper_lim = self.pd.get_dopability_limits(bad_mu_elts)
self.assertIsNone(lower_lim)
self.assertIsNone(upper_lim)
def test_plot(self):
#simple test that plot is produced
p = self.pd.plot(saved=False)
self.assertTrue(p)
class DefectsThermodynamicsTest(PymatgenTest):
def setUp(self):
self.vbm_val = 2.6682
self.gap = 1.5
self.entries = list(loadfn(os.path.join(os.path.dirname(__file__), "GaAs_test_defentries.json")).values())
for entry in self.entries:
entry.parameters.update( {'vbm': self.vbm_val})
self.pd = DefectPhaseDiagram(self.entries, self.vbm_val, self.gap)
self.mu_elts = {Element("As"): -4.658070555, Element("Ga"): -3.7317319750000006}
# make Vac_As (q= -2) only defect test single-stable-charge exceptions
self.extra_entry = DefectEntry(self.entries[5].defect.copy(), 100.)
sep_entries = [ent for ent in self.entries if not (ent.name == 'Vac_As_mult4' and
ent.charge in [-2,-1,0,1,2])]
sep_entries.append( self.extra_entry.copy())
self.sep_pd = DefectPhaseDiagram( sep_entries, self.vbm_val, self.gap)
# make Vac_As (q= -2) is incompatible for larger supercell
ls_entries = self.entries[:]
for entry in ls_entries:
if entry.name == 'Vac_As_mult4' and entry.charge == -2.:
entry.parameters['is_compatible'] = False
self.pd_ls_fcTrue = DefectPhaseDiagram(ls_entries, self.vbm_val, self.gap, filter_compatible=True)
self.pd_ls_fcFalse = DefectPhaseDiagram(ls_entries, self.vbm_val, self.gap, filter_compatible=False)
# load complete dos for fermi energy solving
with open(os.path.join(test_dir, "complete_dos.json"), "r") as f:
dos_dict = json.load(f)
self.dos = CompleteDos.from_dict(dos_dict)
def test_good_test_data(self):
self.assertEqual(len(self.entries), 48)
def test_suggest_charges(self):
suggested_charges = self.pd.suggest_charges()
for k in [
"Vac_As_mult4@0-1-2-3-4-5", "Sub_Ga_on_As_mult4@6-7-8-9-10-11", "Vac_Ga_mult4@12-13-14-15",
"Sub_As_on_Ga_mult4@16-17-18-19-20-21", "Int_Ga_mult1@22-23-24-25",
"Int_As_mult1@26-27-28-29-30-31-32-33-34", "Int_As_mult1@35-36-37-38-39-40-41-42-43",
"Int_Ga_mult1@44-45-46-47"
]:
self.assertTrue(
len(suggested_charges[k]) > 0, "Could not find any suggested charges for {} with band_gap of {}".format(
k, self.pd.band_gap))
pd = DefectPhaseDiagram(self.entries, 2.6682, 1.0)
suggested_charges = self.pd.suggest_charges()
for k in ["Vac_As_mult4@0-1-2-3-4-5", "Vac_Ga_mult4@12-13-14-15"]:
self.assertTrue(
len(suggested_charges[k]) > 0, "Could not find any suggested charges for {} with band_gap of {}".format(
k, pd.band_gap))
#test again but with only one charge state stable for Vac_As
suggested_charges = self.sep_pd.suggest_charges()
self.assertEqual( set(suggested_charges['Vac_As_mult4@0-43']), set([-4]))
def test_suggest_larger_supercells(self):
suggested_larger_cells = self.pd_ls_fcFalse.suggest_larger_supercells()
self.assertEqual( suggested_larger_cells['Vac_As_mult4@0-1-2-3-4-5'], [-2])
# raise error if filter_compatibile = True
self.assertRaises( ValueError, self.pd_ls_fcTrue.suggest_larger_supercells)
def test_entries(self):
all_stable_entries = self.pd.all_stable_entries
self.assertEqual(len(self.pd.defect_types), 8)
self.assertEqual(len(all_stable_entries), sum([len(v) for v in self.pd.stable_charges.values()]))
#test again but with only one charge state stable for Vac_As
self.assertEqual( len(self.sep_pd.transition_level_map['Vac_As_mult4@0-43']), 0)
self.assertEqual( len(self.sep_pd.stable_entries['Vac_As_mult4@0-43']), 1)
self.assertEqual( len(self.sep_pd.finished_charges['Vac_As_mult4@0-43']), 2)
#
def test_solve_for_fermi_energy(self):
fermi_energy = self.pd.solve_for_fermi_energy( 100., self.mu_elts, self.dos)
self.assertAlmostEqual( fermi_energy, 0.57387314)
fermi_energy = self.pd.solve_for_fermi_energy( 1000., self.mu_elts, self.dos)
self.assertAlmostEqual( fermi_energy, 0.74139553)
def test_solve_for_non_equilibrium_fermi_energy(self):
fermi_energy = self.pd.solve_for_non_equilibrium_fermi_energy( 300., 1000., self.mu_elts, self.dos)
self.assertAlmostEqual( fermi_energy, 0.29500637)
fermi_energy = self.pd.solve_for_non_equilibrium_fermi_energy( 1000., 1000., self.mu_elts, self.dos)
self.assertAlmostEqual( fermi_energy, 0.74139553)
def test_get_dopability_limits(self):
lower_lim, upper_lim = self.pd.get_dopability_limits( self.mu_elts)
self.assertAlmostEqual( lower_lim, -0.39996272)
self.assertAlmostEqual( upper_lim, 1.064193047)
# raise error if defects are negative across gap
bad_mu_elts = self.mu_elts.copy()
bad_mu_elts[Element("Ga")] += 10.
lower_lim, upper_lim = self.pd.get_dopability_limits( bad_mu_elts)
self.assertIsNone( lower_lim)
self.assertIsNone( upper_lim)
def test_plot(self):
#simple test that plot is produced
p = self.pd.plot(saved=False)
self.assertTrue( p)