{"success":true,"data":{"mp_id":"mp-2450","type":"TRA","summary":{"formula":"CaSn","mp_id":"mp-2450","nelements":2,"is_stable":true,"nsites":4,"density":4.33149,"volume":121.74739,"a":4.82752,"b":4.38321,"c":6.23945,"alpha":90,"beta":112.75889,"gamma":90,"space_group":"Cmcm","space_group_num":63,"crystal_system":"Orthorhombic","formation_energy_per_atom":-0.64811,"energy_per_atom":-3.6557,"energy_above_hull":0,"point_group":"mmm","Bravais_Lattice":"oC","Bravais_Combination":"oC","packing_fraction":null,"uncorrected_energy_per_atom":-16.63804538,"volume_per_atom":30.43685,"c_over_a":1.29248,"b_over_a":0.90796,"poisson_ratio":0.24968,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":37.561,"g_vrh":22.571,"E_Calc(GPa)":56.413,"homogeneous_poisson":0.24968,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":0.421,"Lame_Lambda(GPa)":22.513666666666666,"Pugh_Ratio(K\/G)":1.6641265340481146,"Ductility":"Ductile","bulk_modulus":37.561,"shear_modulus":22.571,"debye_temperature":241.6,"sound_velocity":2534.2,"homogeneity":0.25},"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-2450","mp_task_ids":["aaadmspw","aaaehgmd","aaaeuhof","aaafapzl","aaafwxwc"]}}}