{"success":true,"data":{"mp_id":"mp-583234","type":"TRA","summary":{"formula":"Bi4I","mp_id":"mp-583234","nelements":2,"is_stable":false,"nsites":20,"density":8.30619,"volume":769.9364,"a":4.45407,"b":13.43706,"c":13.40803,"alpha":103.17626,"beta":90,"gamma":99.54013,"space_group":"C2\/m","space_group_num":12,"crystal_system":"Monoclinic","formation_energy_per_atom":-0.16187,"energy_per_atom":-3.5787,"energy_above_hull":0.0425,"point_group":"2\/m","Bravais_Lattice":"mC","Bravais_Combination":"mC","packing_fraction":null,"uncorrected_energy_per_atom":-51.8343159195,"volume_per_atom":38.49682,"c_over_a":3.01029,"b_over_a":3.0168,"poisson_ratio":null,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":null,"g_vrh":null,"E_Calc(GPa)":null,"homogeneous_poisson":null,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":null,"Lame_Lambda(GPa)":null,"Pugh_Ratio(K\/G)":null,"Ductility":null,"bulk_modulus":null,"shear_modulus":null,"debye_temperature":null,"sound_velocity":null,"homogeneity":null},"electronic":{"is_metal":true,"band_gap":0,"is_gap_direct":false,"cbm":null},"magnetic":{"is_magnetic":true,"total_magnetization":0,"ordering":"Unknown","num_magnetic_sites":0,"total_mag_norm_vol":0},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-583234","mp_task_ids":["aaadoesf","aaadtwzx","aaaekvjz","aaaepvcq","aaafbddt"]}}}