{
    "mp_code": "mp_4296899770",
    "reduced_formula": "Sn3Y1",
    "formula": "YSn3",
    "crystal_system": "Cubic",
    "space_group": 221,
    "international": "Pm-3m",
    "number_of_ions": 4,
    "volume": 105.450000,
    "plasma_frequency_xx": 7.125150,
    "plasma_frequency_yy": 7.125150,
    "plasma_frequency_zz": 7.125150,
    "plasma_frequency_xyz": 7.125000,
    "scattering_rate": 0.1
}