{"success":true,"data":{"mp_id":"mp-1002221","type":"TRA","summary":{"formula":"ErH","mp_id":"mp-1002221","nelements":2,"is_stable":false,"nsites":2,"density":9.66643,"volume":28.90558,"a":3.44481,"b":3.44481,"c":3.44481,"alpha":60,"beta":60,"gamma":60,"space_group":"Fm-3m","space_group_num":225,"crystal_system":"Cubic","formation_energy_per_atom":-0.40715,"energy_per_atom":-19.09743,"energy_above_hull":0.19055,"point_group":"m-3m","Bravais_Lattice":"cF","Bravais_Combination":"cF","packing_fraction":0.7405,"uncorrected_energy_per_atom":-4.3043506,"volume_per_atom":14.45279,"c_over_a":1,"b_over_a":1,"poisson_ratio":0.24574,"Is_FCC":1,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":70.446,"g_vrh":43.134,"E_Calc(GPa)":107.468,"homogeneous_poisson":0.24574,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":0.605,"Lame_Lambda(GPa)":41.69,"Pugh_Ratio(K\/G)":1.6331895952149116,"Ductility":"Ductile","bulk_modulus":70.446,"shear_modulus":43.134,"debye_temperature":null,"sound_velocity":null,"homogeneity":0.246},"electronic":{"is_metal":true,"band_gap":0,"is_gap_direct":false,"cbm":null},"magnetic":{"is_magnetic":false,"total_magnetization":0.00258,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":9.0e-5},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1002221","mp_task_ids":["aaaciiva","aaaddqec","aaadrcer","aaaettzk","aaafcnjp"]}}}