{"success":true,"data":{"mp_id":"mp-27561","type":"TRA","summary":{"formula":"Rb9O2","mp_id":"mp-27561","nelements":2,"is_stable":true,"nsites":22,"density":1.94934,"volume":1365.01419,"a":8.42725,"b":11.7741,"c":14.27902,"alpha":90,"beta":90,"gamma":105.54071,"space_group":"P2_1\/m","space_group_num":11,"crystal_system":"Monoclinic","formation_energy_per_atom":-0.65788,"energy_per_atom":-2.35976,"energy_above_hull":0,"point_group":"2\/m","Bravais_Lattice":"mP","Bravais_Combination":"mP","packing_fraction":null,"uncorrected_energy_per_atom":-13.090559034545453,"volume_per_atom":62.0461,"c_over_a":1.69439,"b_over_a":1.39715,"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":0.34128,"ordering":"Unknown","num_magnetic_sites":0,"total_mag_norm_vol":0.00025},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-27561","mp_task_ids":["aaaemnhg"]}}}