{"success":true,"data":{"mp_id":"mp-4006","type":"ELA","summary":{"formula":"ErPO4","mp_id":"mp-4006","nelements":3,"is_stable":true,"nsites":12,"density":6.27511,"volume":138.7845,"a":5.67018,"b":5.67018,"c":5.67018,"alpha":106.12757,"beta":106.12757,"gamma":116.3879,"space_group":"I4_1\/amd","space_group_num":141,"crystal_system":"Tetragonal","formation_energy_per_atom":-3.51237,"energy_per_atom":-8.47487,"energy_above_hull":0,"point_group":"4\/mmm","Bravais_Lattice":"tI","Bravais_Combination":"tI","packing_fraction":null,"uncorrected_energy_per_atom":-14.49118,"volume_per_atom":11.56538,"c_over_a":1,"b_over_a":1,"poisson_ratio":0.29753,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":141.94,"g_vrh":66.446,"E_Calc(GPa)":172.431,"homogeneous_poisson":0.298,"Vickers_Hard_Est(GPa)":6.583,"universal_anisotropy":2.321,"Lame_Lambda(GPa)":97.64266666666666,"Pugh_Ratio(K\/G)":2.136170725100081,"Ductility":"Brittle","bulk_modulus":141.94,"shear_modulus":66.446,"debye_temperature":974.7,"sound_velocity":3633.6,"homogeneity":0.298},"electronic":{"is_metal":false,"band_gap":5.9256,"is_gap_direct":true,"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-4006","mp_task_ids":["aaabmtqt","aaaemuuw","aaaenaik","aaaezlmi","aaafcawz"]},"xrd":{"by_target":{"AgKa":{"radiation":"Ag Kα","wavelength":0.5609,"n_peaks":114,"three_strong":[9.4421,12.6795,7.1564]},"CoKa":{"radiation":"Co Kα","wavelength":1.7903,"n_peaks":43,"three_strong":[30.4612,22.9811,41.2752]},"CrKa":{"radiation":"Cr Kα","wavelength":2.291,"n_peaks":27,"three_strong":[29.5382,39.2891,39.2891]},"CuKa":{"radiation":"Cu Kα","wavelength":1.5418,"n_peaks":61,"three_strong":[19.7575,35.3417,26.153]},"MoKa":{"radiation":"Mo Kα","wavelength":0.7107,"n_peaks":137,"three_strong":[16.087,9.0719,23.4606]}}}}}