Source code for ryd_numerov.elements.cesium

from pathlib import Path
from typing import ClassVar

from ryd_numerov.elements.base_element import BaseElement


[docs] class Cesium(BaseElement): species = "Cs" Z = 55 s = 1 / 2 ground_state_shell = (6, 0) _additional_allowed_shells: ClassVar = [(4, 3), (5, 2), (5, 3), (5, 4)] _core_electron_configuration = "5p6" _nist_energy_levels_file = Path(__file__).parent / "nist_energy_levels" / "cesium.txt" # https://webbook.nist.gov/cgi/inchi?ID=C7440462&Mask=20 _ionization_energy = (3.893_90, 0.000_002, "eV") potential_type_default = "model_potential_marinescu_1993" # -- [1] Phys. Rev. A 93, 013424 (2016) # -- [2] Phys. Rev. A 26, 2733 (1982) # -- [3] Phys. Rev. A 35, 4650 (1987) _quantum_defects: ClassVar = { (0, 0.5): (4.0493532, 0.2391, 0.06, 11, -209), # [1] (1, 0.5): (3.5915871, 0.36273, 0.0, 0.0, 0.0), # [1] (1, 1.5): (3.5590676, 0.37469, 0.0, 0.0, 0.0), # [1] (2, 1.5): (2.475365, 0.5554, 0.0, 0.0, 0.0), # [2] (2, 2.5): (2.4663144, 0.01381, -0.392, -1.9, 0.0), # [1] (3, 2.5): (0.03341424, -0.198674, 0.28953, -0.2601, 0.0), # [3] (3, 3.5): (0.033537, -0.191, 0.0, 0.0, 0.0), # [2] (4, 3.5): (0.00703865, -0.049252, 0.01291, 0.0, 0.0), # [3] } _corrected_rydberg_constant = (109736.8627339, None, "1/cm") # Phys. Rev. A 49, 982 (1994) alpha_c_marinescu_1993 = 15.6440 r_c_dict_marinescu_1993: ClassVar = {0: 1.92046930, 1: 2.13383095, 2: 0.93007296, 3: 1.99969677} model_potential_parameter_marinescu_1993: ClassVar = { 0: (3.49546309, 1.47533800, -9.72143084, 0.02629242), 1: (4.69366096, 1.71398344, -24.65624280, -0.09543125), 2: (4.32466196, 1.61365288, -6.70128850, -0.74095193), 3: (3.01048361, 1.40000001, -3.20036138, 0.00034538), } # https://iopscience.iop.org/article/10.1088/1674-1056/18/10/025 model_potential_parameter_fei_2009 = (0.9447, 14.7149, 0.2944, 0.1934)