{"success":true,"data":{"mp_id":"mp-28927","type":"TRA","summary":{"formula":"Ba(NiP2)2","mp_id":"mp-28927","nelements":3,"is_stable":false,"nsites":7,"density":5.11295,"volume":122.96128,"a":5.44407,"b":5.44407,"c":5.44407,"alpha":106.27991,"beta":106.27991,"gamma":116.06176,"space_group":"I4\/mmm","space_group_num":139,"crystal_system":"Tetragonal","formation_energy_per_atom":-0.6536,"energy_per_atom":-5.67377,"energy_above_hull":0.00057,"point_group":"4\/mmm","Bravais_Lattice":"tI","Bravais_Combination":"tI","packing_fraction":null,"uncorrected_energy_per_atom":-13.06706232,"volume_per_atom":17.5659,"c_over_a":1,"b_over_a":1,"poisson_ratio":0.1474,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":104.512,"g_vrh":96.35,"E_Calc(GPa)":221.104,"homogeneous_poisson":0.1474,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":-3.826,"Lame_Lambda(GPa)":40.278666666666666,"Pugh_Ratio(K\/G)":1.0847119875454074,"Ductility":"Ductile","bulk_modulus":104.512,"shear_modulus":96.35,"debye_temperature":634.2,"sound_velocity":4766.7,"homogeneity":0.147},"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-28927","mp_task_ids":["aaadmuir","aaadsyew","aaaekura","aaaeuqzc","aaafcayz"]}}}