{"success":true,"data":{"mp_id":"mp-1224391","type":"TRA","summary":{"formula":"Hf4N3","mp_id":"mp-1224391","nelements":2,"is_stable":false,"nsites":7,"density":13.65191,"volume":91.95301,"a":10.69417,"b":10.69417,"c":10.69417,"alpha":17.07121,"beta":17.07121,"gamma":17.07121,"space_group":"R3m","space_group_num":160,"crystal_system":"Trigonal","formation_energy_per_atom":-1.72538,"energy_per_atom":-31.43851,"energy_above_hull":0.04349,"point_group":"3m","Bravais_Lattice":"hR","Bravais_Combination":"hR","packing_fraction":null,"uncorrected_energy_per_atom":-31.43850699714286,"volume_per_atom":13.13614,"c_over_a":1,"b_over_a":1,"poisson_ratio":null,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"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":true,"total_magnetization":0.73001,"ordering":"Unknown","num_magnetic_sites":0,"total_mag_norm_vol":0.00794},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-1224391","mp_task_ids":["aaadomer","aaadvzmb","aaaekumg","aaaesohg","aaafbawy"]}}}