{"success":true,"data":{"mp_id":"mp-729139","type":"TRA","summary":{"formula":"NaNb6O16","mp_id":"mp-729139","nelements":3,"is_stable":false,"nsites":23,"density":4.45342,"volume":311.87423,"a":9.19207,"b":9.19207,"c":3.93147,"alpha":90,"beta":90,"gamma":110.13995,"space_group":"Amm2","space_group_num":38,"crystal_system":"Orthorhombic","formation_energy_per_atom":-2.89056,"energy_per_atom":-9.02608,"energy_above_hull":0.05903,"point_group":"mm2","Bravais_Lattice":"oC","Bravais_Combination":"oC","packing_fraction":null,"uncorrected_energy_per_atom":-8.548165435652175,"volume_per_atom":13.55975,"c_over_a":0.4277,"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":false,"total_magnetization":0.04275,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":0.00014},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-729139","mp_task_ids":["aaadnjen","aaadrbwn","aaadzcqs","aaaetlzt","aaafwvjz"]}}}