{"success":true,"data":{"mp_id":"mp-1238787","type":"TRA","summary":{"formula":"NaO2","mp_id":"mp-1238787","nelements":2,"is_stable":false,"nsites":6,"density":2.12869,"volume":85.79055,"a":4.3287,"b":4.3287,"c":4.5785,"alpha":90,"beta":90,"gamma":90,"space_group":"P4_2\/mnm","space_group_num":136,"crystal_system":"Tetragonal","formation_energy_per_atom":-0.84204,"energy_per_atom":-4.58792,"energy_above_hull":0.06569,"point_group":"4\/mmm","Bravais_Lattice":"tP","Bravais_Combination":"tP","packing_fraction":null,"uncorrected_energy_per_atom":-4.480589023333333,"volume_per_atom":14.29842,"c_over_a":1.05771,"b_over_a":1,"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":2.0007,"ordering":"FM","num_magnetic_sites":4,"total_mag_norm_vol":0.02332},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1238787","mp_task_ids":["aaadedms","aaadoqql","aaadvyxd","aaaeqjkc","aaafbnxf"]}}}