{"success":true,"data":{"mp_id":"mp-341","type":"ELA","summary":{"formula":"PbF4","mp_id":"mp-341","nelements":2,"is_stable":true,"nsites":5,"density":6.48609,"volume":72.50196,"a":4.2935,"b":4.2935,"c":4.96847,"alpha":115.5993,"beta":115.59931,"gamma":89.99998,"space_group":"I4\/mmm","space_group_num":139,"crystal_system":"Tetragonal","formation_energy_per_atom":-2.19659,"energy_per_atom":-4.47079,"energy_above_hull":0,"point_group":"4\/mmm","Bravais_Lattice":"tI","Bravais_Combination":"tI","packing_fraction":null,"uncorrected_energy_per_atom":-15.74875,"volume_per_atom":14.50039,"c_over_a":1.15721,"b_over_a":1,"poisson_ratio":0.19738,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":31.019,"g_vrh":23.519,"E_Calc(GPa)":56.322,"homogeneous_poisson":0.197,"Vickers_Hard_Est(GPa)":6.176,"universal_anisotropy":9.255,"Lame_Lambda(GPa)":15.339666666666666,"Pugh_Ratio(K\/G)":1.3188911093158724,"Ductility":"Ductile","bulk_modulus":31.019,"shear_modulus":23.519,"debye_temperature":284.7,"sound_velocity":2101.6,"homogeneity":0.197},"electronic":{"is_metal":false,"band_gap":1.9294,"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-341","mp_task_ids":["aaabndyn","aaacmxtf","aaaegywi","aaaenlmu","aaafauin","aaafssdd"]},"xrd":{"by_target":{"AgKa":{"radiation":"Ag Kα","wavelength":0.5609,"n_peaks":91,"three_strong":[8.5352,17.2937,14.399]},"CoKa":{"radiation":"Co Kα","wavelength":1.7903,"n_peaks":47,"three_strong":[27.4804,27.4804,26.3109]},"CrKa":{"radiation":"Cr Kα","wavelength":2.291,"n_peaks":26,"three_strong":[35.3906,33.8659,35.3905]},"CuKa":{"radiation":"Cu Kα","wavelength":1.5418,"n_peaks":63,"three_strong":[23.6076,22.6077,40.3037]},"MoKa":{"radiation":"Mo Kα","wavelength":0.7107,"n_peaks":140,"three_strong":[10.8215,10.8215,13.444]}}}}}