{"success":true,"data":{"mp_id":"mp-1237667","type":"TRA","summary":{"formula":"Na2O2","mp_id":"mp-1237667","nelements":2,"is_stable":false,"nsites":2,"density":2.57584,"volume":25.1347,"a":2.95553,"b":2.95553,"c":2.96993,"alpha":81.31322,"beta":81.31322,"gamma":81.36223,"space_group":"R-3m","space_group_num":166,"crystal_system":"Trigonal","formation_energy_per_atom":-1.04324,"energy_per_atom":-4.18808,"energy_above_hull":0.25486,"point_group":"-3m","Bravais_Lattice":"hR","Bravais_Combination":"hR","packing_fraction":null,"uncorrected_energy_per_atom":-3.844576315,"volume_per_atom":12.56735,"c_over_a":1.00487,"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":0.99922,"ordering":"FM","num_magnetic_sites":1,"total_mag_norm_vol":0.03975},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1237667","mp_task_ids":["aaaeipke"]}}}