{"success":true,"data":{"mp_id":"mp-755690","type":"TRA","summary":{"formula":"NbO2","mp_id":"mp-755690","nelements":2,"is_stable":false,"nsites":6,"density":5.70467,"volume":72.71586,"a":5.27444,"b":5.27444,"c":5.27444,"alpha":134.81884,"beta":134.81883,"gamma":65.81182,"space_group":"I4_1\/amd","space_group_num":141,"crystal_system":"Tetragonal","formation_energy_per_atom":-2.81762,"energy_per_atom":-9.48337,"energy_above_hull":0.08,"point_group":"4\/mmm","Bravais_Lattice":"tI","Bravais_Combination":"tI","packing_fraction":null,"uncorrected_energy_per_atom":-14.81039037,"volume_per_atom":12.11931,"c_over_a":1,"b_over_a":1,"poisson_ratio":0.27865,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":181.643,"g_vrh":94.335,"E_Calc(GPa)":241.242,"homogeneous_poisson":0.27865,"Vickers_Hard_Est(GPa)":null,"universal_anisotropy":3.265,"Lame_Lambda(GPa)":118.75300000000001,"Pugh_Ratio(K\/G)":1.92551014999735,"Ductility":"Brittle","bulk_modulus":181.643,"shear_modulus":94.335,"debye_temperature":647.9,"sound_velocity":4530.1,"homogeneity":0.279},"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-755690","mp_task_ids":["aaadopyw","aaadwdvp","aaaeluga","aaaesons","aaafbnxm"]}}}