{"success":true,"data":{"mp_id":"mp-4840","type":"ELA","summary":{"formula":"GaCuSe2","mp_id":"mp-4840","nelements":3,"is_stable":true,"nsites":8,"density":5.5457,"volume":174.38033,"a":5.60274,"b":5.60274,"c":6.82314,"alpha":114.24058,"beta":114.24057,"gamma":90,"space_group":"I-42d","space_group_num":122,"crystal_system":"Tetragonal","formation_energy_per_atom":-0.57365,"energy_per_atom":-13.30182,"energy_above_hull":0,"point_group":"-42m","Bravais_Lattice":"tI","Bravais_Combination":"tI","packing_fraction":null,"uncorrected_energy_per_atom":-13.30182,"volume_per_atom":21.79754,"c_over_a":1.21782,"b_over_a":1,"poisson_ratio":0.27974,"Is_FCC":0,"Is_BCC":0,"Is_HCP":0},"elasticity":{"k_vrh":55.594,"g_vrh":28.705,"E_Calc(GPa)":73.47,"homogeneous_poisson":0.28,"Vickers_Hard_Est(GPa)":3.578,"universal_anisotropy":0.761,"Lame_Lambda(GPa)":36.45733333333334,"Pugh_Ratio(K\/G)":1.9367357603205018,"Ductility":"Brittle","bulk_modulus":55.594,"shear_modulus":28.705,"debye_temperature":350.5,"sound_velocity":2534.8,"homogeneity":0.28},"electronic":{"is_metal":false,"band_gap":0.0398,"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-4840","mp_task_ids":["aaacmyih","aaadmnvm","aaadqyea","aaaelymy","aaaeukut","aaafssnn"]},"xrd":{"by_target":{"AgKa":{"radiation":"Ag Kα","wavelength":0.5609,"n_peaks":41,"three_strong":[9.9758,16.3484,19.1272]},"CoKa":{"radiation":"Co Kα","wavelength":1.7903,"n_peaks":10,"three_strong":[32.224,53.979,64.0514]},"CrKa":{"radiation":"Cr Kα","wavelength":2.291,"n_peaks":6,"three_strong":[41.6038,71.0085,70.6596]},"CuKa":{"radiation":"Cu Kα","wavelength":1.5418,"n_peaks":15,"three_strong":[27.6559,46.0152,54.3506]},"MoKa":{"radiation":"Mo Kα","wavelength":0.7107,"n_peaks":62,"three_strong":[20.7591,12.6506,12.6506]}}}}}