def eps0(self):
"""
Relaxed ion macroscopic |DielectricTensor| in Cartesian coordinates (a.k.a. epsilon_zero)
None if the file does not contain this information.
"""
try:
return DielectricTensor(self.reader.read_value("emacro_cart_rlx").T.copy())
except Exception as exc:
#print(exc, "Requires dieflag > 0", "Returning None", sep="\n")
return None
def epsinf(self):
"""
Macroscopic electronic |DielectricTensor| in Cartesian coordinates (a.k.a. epsilon_infinity)
None if the file does not contain this information.
"""
try:
return DielectricTensor(self.reader.read_value("emacro_cart").T.copy())
except Exception as exc:
#print(exc, "Returning None", sep="\n")
return None
def test_base(self):
"""Base tests for DielectricTensor"""
eps = DielectricTensor(np.diag([1, 2, 3]))
repr(eps); str(eps)
assert eps._repr_html_()
assert len(eps.get_dataframe()) == 3
assert len(eps.get_voigt_dataframe().keys()) == 6
self.assertArrayAlmostEqual(eps.reflectivity(), [0., 0.029437251522859434, 0.071796769724490825])