{"success":true,"data":{"mp_id":"mp-867317","type":"TRA","summary":{"formula":"Cu3Si","mp_id":"mp-867317","nelements":2,"is_stable":false,"nsites":8,"density":7.80534,"volume":93.06427,"a":5.13506,"b":5.13508,"c":4.07458,"alpha":89.99016,"beta":90.01,"gamma":119.98246,"space_group":"P6_3\/mmc","space_group_num":194,"crystal_system":"Hexagonal","formation_energy_per_atom":-0.04623,"energy_per_atom":-10.37477,"energy_above_hull":0.02681,"point_group":"6\/mmm","Bravais_Lattice":"hP","Bravais_Combination":"hP","packing_fraction":0.7405,"uncorrected_energy_per_atom":-10.37476500125,"volume_per_atom":11.63303,"c_over_a":0.79348,"b_over_a":1,"poisson_ratio":0.31708,"Is_FCC":0,"Is_BCC":0,"Is_HCP":1},"elasticity":{"k_vrh":144.315,"g_vrh":60.128,"E_Calc(GPa)":158.387,"homogeneous_poisson":0.31708,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":0.15,"Lame_Lambda(GPa)":104.22966666666667,"Pugh_Ratio(K\/G)":2.4001297232570518,"Ductility":"Brittle","bulk_modulus":144.315,"shear_modulus":60.128,"debye_temperature":408.1,"sound_velocity":3107,"homogeneity":0.317},"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-867317","mp_task_ids":["aaaciazj","aaadvqro","aaaemqyc","aaaeprnb","aaafbica"]}}}