{"success":true,"data":{"mp_id":"mp-766217","type":"ELA","summary":{"formula":"Sr4Cu2O7","mp_id":"mp-766217","nelements":3,"is_stable":true,"nsites":26,"density":5.42589,"volume":360.86229,"a":5.4495,"b":6.72668,"c":10.74961,"alpha":66.31694,"beta":90,"gamma":90,"space_group":"P2_1\/c","space_group_num":14,"crystal_system":"Monoclinic","formation_energy_per_atom":-2.34112,"energy_per_atom":-6.1568,"energy_above_hull":0,"point_group":"2\/m","Bravais_Lattice":"mP","Bravais_Combination":"mP","packing_fraction":null,"uncorrected_energy_per_atom":-11.74733,"volume_per_atom":13.87932,"c_over_a":1.97259,"b_over_a":1.23437,"poisson_ratio":0.26305,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":94.546,"g_vrh":53.21,"E_Calc(GPa)":134.414,"homogeneous_poisson":0.263,"Vickers_Hard_Est(GPa)":7.439,"universal_anisotropy":0.25,"Lame_Lambda(GPa)":59.07266666666667,"Pugh_Ratio(K\/G)":1.7768464574328136,"Ductility":"Brittle","bulk_modulus":94.546,"shear_modulus":53.21,"debye_temperature":719.2,"sound_velocity":3482,"homogeneity":0.263},"electronic":{"is_metal":false,"band_gap":0.8323,"is_gap_direct":false,"cbm":null},"magnetic":{"is_magnetic":false,"total_magnetization":0,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":0},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-766217","mp_task_ids":["aaabsxtr","aaaclqhn","aaafzzht"]}}}