{"success":true,"data":{"mp_id":"mp-3273720","type":"HEA","summary":{"formula":"CaEr(NiAs)2","mp_id":"mp-3273720","nelements":4,"is_stable":true,"nsites":12,"density":7.1201,"volume":221.35564,"a":4.00201,"b":4.00201,"c":15.95895,"alpha":90,"beta":90,"gamma":120.00002,"space_group":"P6_3\/mmc","space_group_num":194,"crystal_system":"Hexagonal","formation_energy_per_atom":-1.04456,"energy_per_atom":-16.76827,"energy_above_hull":0,"point_group":"6\/mmm","Bravais_Lattice":"hP","Bravais_Combination":"hP","packing_fraction":0.7405,"uncorrected_energy_per_atom":-16.76827,"volume_per_atom":18.4463,"c_over_a":3.98773,"b_over_a":1,"poisson_ratio":null,"Is_FCC":0,"Is_BCC":0,"Is_HCP":1},"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":0.00062,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":0},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-3273720","mp_task_ids":["aaahegui"]}}}