{"success":true,"data":{"mp_id":"mp-1212817","type":"HEA","summary":{"mp_id":"mp-1212817","formula":"Er(AlFe2)4","nelements":3,"nsites":13,"density":6.72702,"volume":178.20947,"energy_above_hull":0.04067,"formation_energy_per_atom":-0.23209,"energy_per_atom":-6.94826,"is_stable":false,"uncorrected_energy_per_atom":-6.94826,"last_updated":"2025-09-23 22:45:43.376000+00:00","deprecated":false,"possible_species":[],"crystal_system":"Tetragonal","space_group":"I4\/mmm","space_group_num":139,"point_group":"4\/mmm","a":4.94866,"b":6.49107,"c":6.49107,"alpha":81.645,"beta":67.5926,"gamma":67.5926,"volume_cell":178.20947,"volume_per_atom":13.70842,"c_over_a":1.31168,"b_over_a":1.31168,"Bravais_Lattice":"tI","Lattice_Type_Detail":"Body-Centered Tetragonal","Lattice_Centering":"Body-Centered","Bravais_Combination":"tI","Is_FCC":false,"Is_BCC":false,"Is_HCP":false,"Is_Bravais_aP":false,"Is_Bravais_mP":false,"Is_Bravais_mC":false,"Is_Bravais_oP":false,"Is_Bravais_oC":false,"Is_Bravais_oI":false,"Is_Bravais_oF":false,"Is_Bravais_tP":false,"Is_Bravais_tI":true,"Is_Bravais_hP":false,"Is_Bravais_hR":false,"Is_Bravais_cP":false,"Is_Bravais_cI":false,"Is_Bravais_cF":false,"packing_fraction":null},"elasticity":{"available":false},"electronic":{"is_metal":true,"band_gap":0,"is_gap_direct":false,"cbm":null,"vbm":null},"magnetic":{"total_magnetization":15.36008,"total_mag_norm_vol":0.08619,"num_magnetic_sites":9,"ordering":"FiM","is_magnetic":true},"refs":{"dois":[],"bibtex_entries":[],"origin_tasks":["mp-1832516","mp-1832516","mp-1832516","mp-1832516"],"raw_refs":[],"mp_task_ids":["mp-1212817","mp-1832516"],"mp_url":"https:\/\/next-gen.materialsproject.org\/materials\/mp-1212817"}}}