{"success":true,"data":{"mp_id":"mp-1029309","type":"HEA","summary":{"formula":"Na2HfN2","mp_id":"mp-1029309","nelements":3,"is_stable":false,"nsites":5,"density":4.92009,"volume":85.2134,"a":3.31081,"b":3.31081,"c":8.97651,"alpha":90,"beta":90,"gamma":120,"space_group":"P-3m1","space_group_num":164,"crystal_system":"Trigonal","formation_energy_per_atom":-0.90679,"energy_per_atom":-15.01425,"energy_above_hull":0.04406,"point_group":"-3m","Bravais_Lattice":"hP","Bravais_Combination":"hP","packing_fraction":0.7405,"uncorrected_energy_per_atom":-6.60542,"volume_per_atom":17.04268,"c_over_a":2.71127,"b_over_a":1,"poisson_ratio":0.23177,"Is_FCC":0,"Is_BCC":0,"Is_HCP":1},"elasticity":{"k_vrh":33.135,"g_vrh":21.646,"E_Calc(GPa)":53.326,"homogeneous_poisson":0.23177,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":40.965,"Lame_Lambda(GPa)":18.70433333333333,"Pugh_Ratio(K\/G)":1.5307678092950197,"Ductility":"Ductile","bulk_modulus":33.135,"shear_modulus":21.646,"debye_temperature":268.8,"sound_velocity":2323.7,"homogeneity":0.232},"electronic":{"is_metal":true,"band_gap":0,"is_gap_direct":false,"cbm":null},"magnetic":{"is_magnetic":false,"total_magnetization":7.0e-5,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":0},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1029309","mp_task_ids":["aaadcuji","aaadmfmc","aaadwbjn","aaaetcbu","aaafxavm"]}}}