{"success":true,"data":{"mp_id":"mp-1074228","type":"TRA","summary":{"formula":"Mg4Si7","mp_id":"mp-1074228","nelements":2,"is_stable":false,"nsites":22,"density":2.3547,"volume":414.40249,"a":4.24069,"b":6.75907,"c":14.79325,"alpha":81.40976,"beta":81.77951,"gamma":85.87888,"space_group":"P-1","space_group_num":2,"crystal_system":"Triclinic","formation_energy_per_atom":0.17139,"energy_per_atom":-3.87398,"energy_above_hull":0.23063,"point_group":"-1","Bravais_Lattice":"aP","Bravais_Combination":"aP","packing_fraction":null,"uncorrected_energy_per_atom":-3.919165269090909,"volume_per_atom":18.83648,"c_over_a":3.48841,"b_over_a":1.59386,"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":0.00084,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":0},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1074228","mp_task_ids":["aaacjdff","aaadzkru"]}}}