{"success":true,"data":{"mp_id":"mp-21150","type":"HEA","summary":{"formula":"Sr2Ni(NO2)6","mp_id":"mp-21150","nelements":4,"is_stable":false,"nsites":21,"density":3.28886,"volume":257.481,"a":7.14091,"b":7.14091,"c":7.14091,"alpha":60,"beta":60,"gamma":60,"space_group":"Fm-3m","space_group_num":225,"crystal_system":"Cubic","formation_energy_per_atom":0.46402,"energy_per_atom":-5.18218,"energy_above_hull":1.85087,"point_group":"m-3m","Bravais_Lattice":"cF","Bravais_Combination":"cF","packing_fraction":0.7405,"uncorrected_energy_per_atom":-4.66861,"volume_per_atom":12.261,"c_over_a":1,"b_over_a":1,"poisson_ratio":null,"Is_FCC":1,"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":false,"total_magnetization":0.00132,"ordering":"NM","num_magnetic_sites":0,"total_mag_norm_vol":1.0e-5},"refs":{"mp_url":"https:\/\/materialsproject.org\/materials\/mp-21150","mp_task_ids":["aaadnodm","aaadrkqz","aaadwzex","aaaetpjm","aaafxali"]},"xrd":{"by_target":{"AgKa":{"radiation":"Ag Kα","wavelength":0.5609,"n_peaks":78,"three_strong":[5.5139,15.638,9.0099]},"CoKa":{"radiation":"Co Kα","wavelength":1.7903,"n_peaks":17,"three_strong":[17.6625,29.0384,51.4731]},"CrKa":{"radiation":"Cr Kα","wavelength":2.291,"n_peaks":10,"three_strong":[22.6607,37.426,67.5165]},"CuKa":{"radiation":"Cu Kα","wavelength":1.5418,"n_peaks":24,"three_strong":[15.1959,24.9386,43.9224]},"MoKa":{"radiation":"Mo Kα","wavelength":0.7107,"n_peaks":70,"three_strong":[6.9886,19.8536,11.4241]}}}}}