{"success":true,"data":{"mp_id":"mp-1535","type":"TRA","summary":{"formula":"TbSi2","mp_id":"mp-1535","nelements":2,"is_stable":false,"nsites":3,"density":6.24172,"volume":57.22396,"a":4.06307,"b":4.06306,"c":4.00258,"alpha":90,"beta":90,"gamma":119.99998,"space_group":"P6\/mmm","space_group_num":191,"crystal_system":"Hexagonal","formation_energy_per_atom":-0.56117,"energy_per_atom":-16.81916,"energy_above_hull":0.04938,"point_group":"6\/mmm","Bravais_Lattice":"hP","Bravais_Combination":"hP","packing_fraction":0.7405,"uncorrected_energy_per_atom":-16.819160853333333,"volume_per_atom":19.07465,"c_over_a":0.98511,"b_over_a":1,"poisson_ratio":0.36242,"Is_FCC":0,"Is_BCC":0,"Is_HCP":1},"elasticity":{"k_vrh":85.829,"g_vrh":26.002,"E_Calc(GPa)":70.851,"homogeneous_poisson":0.36242,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":4.075,"Lame_Lambda(GPa)":68.49433333333333,"Pugh_Ratio(K\/G)":3.3008614721944465,"Ductility":"Brittle","bulk_modulus":85.829,"shear_modulus":26.002,"debye_temperature":400.6,"sound_velocity":2298.6,"homogeneity":0.362},"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-1535","mp_task_ids":["aaadmton","aaadrfdp","aaaemnut","aaaeqvub","aaafihyd"]}}}