{"success":true,"data":{"mp_id":"mp-1557","type":"TRA","summary":{"formula":"Mg3Au","mp_id":"mp-1557","nelements":2,"is_stable":false,"nsites":24,"density":5.77754,"volume":465.40435,"a":7.9819,"b":7.9819,"c":8.43505,"alpha":90,"beta":90,"gamma":119.99999,"space_group":"P-3c1","space_group_num":165,"crystal_system":"Trigonal","formation_energy_per_atom":-0.39217,"energy_per_atom":-2.43349,"energy_above_hull":0.00044,"point_group":"-3m","Bravais_Lattice":"hP","Bravais_Combination":"hP","packing_fraction":0.7405,"uncorrected_energy_per_atom":-2.4334946716666668,"volume_per_atom":19.39185,"c_over_a":1.05677,"b_over_a":1,"poisson_ratio":0.25079,"Is_FCC":0,"Is_BCC":0,"Is_HCP":1},"elasticity":{"k_vrh":57.636,"g_vrh":34.45,"E_Calc(GPa)":86.18,"homogeneous_poisson":0.25079,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":0.202,"Lame_Lambda(GPa)":34.669333333333334,"Pugh_Ratio(K\/G)":1.6730333817126268,"Ductility":"Ductile","bulk_modulus":57.636,"shear_modulus":34.45,"debye_temperature":300.4,"sound_velocity":2711.2,"homogeneity":0.251},"electronic":{"is_metal":true,"band_gap":0,"is_gap_direct":false,"cbm":null},"magnetic":{"is_magnetic":true,"total_magnetization":0,"ordering":"Unknown","num_magnetic_sites":0,"total_mag_norm_vol":0},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1557","mp_task_ids":["aaacbocc","aaadjzgi","aaadzumd"]}}}