{"success":true,"data":{"mp_id":"mp-571353","type":"TRA","summary":{"formula":"BaSn5","mp_id":"mp-571353","nelements":2,"is_stable":false,"nsites":6,"density":6.60259,"volume":183.81434,"a":5.38735,"b":5.38735,"c":7.31306,"alpha":90,"beta":90,"gamma":120,"space_group":"P6\/mmm","space_group_num":191,"crystal_system":"Hexagonal","formation_energy_per_atom":-0.26923,"energy_per_atom":-3.93037,"energy_above_hull":0.02622,"point_group":"6\/mmm","Bravais_Lattice":"hP","Bravais_Combination":"hP","packing_fraction":0.7405,"uncorrected_energy_per_atom":-25.29877578,"volume_per_atom":30.63572,"c_over_a":1.35745,"b_over_a":1,"poisson_ratio":0.31678,"Is_FCC":0,"Is_BCC":0,"Is_HCP":1},"elasticity":{"k_vrh":35.93,"g_vrh":14.998,"E_Calc(GPa)":39.498,"homogeneous_poisson":0.31678,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":1.431,"Lame_Lambda(GPa)":25.931333333333335,"Pugh_Ratio(K\/G)":2.3956527537004937,"Ductility":"Brittle","bulk_modulus":35.93,"shear_modulus":14.998,"debye_temperature":172,"sound_velocity":1687.1,"homogeneity":0.317},"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-571353","mp_task_ids":["aaadmvoi","aaadswif","aaaelirt","aaaeumrq","aaafihwe"]}}}