{"success":true,"data":{"mp_id":"mp-977182","type":"TRA","summary":{"formula":"NaNb3","mp_id":"mp-977182","nelements":2,"is_stable":false,"nsites":4,"density":6.60718,"volume":75.82649,"a":4.75093,"b":4.75093,"c":4.75093,"alpha":60,"beta":60,"gamma":60,"space_group":"Fm-3m","space_group_num":225,"crystal_system":"Cubic","formation_energy_per_atom":0.74028,"energy_per_atom":-18.70132,"energy_above_hull":0.74028,"point_group":"m-3m","Bravais_Lattice":"cF","Bravais_Combination":"cF","packing_fraction":0.7405,"uncorrected_energy_per_atom":-7.16633169,"volume_per_atom":18.95662,"c_over_a":1,"b_over_a":1,"poisson_ratio":-0.00325,"Is_FCC":1,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":116.717,"g_vrh":176.789,"E_Calc(GPa)":352.428,"homogeneous_poisson":-0.00325,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":-5.142,"Lame_Lambda(GPa)":-1.142333333333326,"Pugh_Ratio(K\/G)":0.660205103258687,"Ductility":"Ductile","bulk_modulus":116.717,"shear_modulus":176.789,"debye_temperature":625.9,"sound_velocity":5607.2,"homogeneity":-0.003},"electronic":{"is_metal":true,"band_gap":0,"is_gap_direct":false,"cbm":null},"magnetic":{"is_magnetic":false,"total_magnetization":0.00944,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":0.00012},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-977182","mp_task_ids":["aaaddlib","aaadnxqx","aaadwoec","aaaeteah","aaafcute"]}}}