{"success":true,"data":{"mp_id":"mp-4441","type":"HEA","summary":{"formula":"Ca(CuGe)2","mp_id":"mp-4441","nelements":3,"is_stable":true,"nsites":5,"density":6.02356,"volume":86.13433,"a":4.11784,"b":4.11784,"c":5.85505,"alpha":110.58814,"beta":110.58815,"gamma":90,"space_group":"I4\/mmm","space_group_num":139,"crystal_system":"Tetragonal","formation_energy_per_atom":-0.41133,"energy_per_atom":-11.70649,"energy_above_hull":0,"point_group":"4\/mmm","Bravais_Lattice":"tI","Bravais_Combination":"tI","packing_fraction":null,"uncorrected_energy_per_atom":-11.70649,"volume_per_atom":17.22687,"c_over_a":1.42187,"b_over_a":1,"poisson_ratio":0.2744,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":79.246,"g_vrh":42.085,"E_Calc(GPa)":107.266,"homogeneous_poisson":0.2744,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":0.526,"Lame_Lambda(GPa)":51.18933333333332,"Pugh_Ratio(K\/G)":1.8829986931210643,"Ductility":"Brittle","bulk_modulus":79.246,"shear_modulus":42.085,"debye_temperature":339.2,"sound_velocity":2943.1,"homogeneity":0.274},"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-4441","mp_task_ids":["aaadmmta","aaadrlnj","aaaegxbe","aaaeutre","aaafiljo"]}}}