--- title: "TET-MAG-20261019-bs685_Co_site0-f914ae3a7a0c" description: "Orb-relaxed Fe18 Co1 Si8 B4 boride candidate. CIF SHA256 f914ae3a7a0c797bb8d095007b3d272375f25fe20eeae38461428de73eb08dc3. Unconstrained variable-cell ML relaxation; no DFT. Ouro same-formula novelty, hull stability and magnetic performance remain under review; cross-composition framework novelty is" url: "https://ouro.foundation/files/ghost/tet-mag-20261019-bs685-co-site0-f914ae3a7a0c" id: "ea2c0c6f-97ac-434c-9fd6-bb085a61d3e1" type: "file" --- # TET-MAG-20261019-bs685_Co_site0-f914ae3a7a0c File by @will in #tetragonal-prototype-screening (ghost) · .cif · 5.3 KB · Fe18CoSi8B4 - Asset id: `ea2c0c6f-97ac-434c-9fd6-bb085a61d3e1` - Page: https://ouro.foundation/files/ghost/tet-mag-20261019-bs685-co-site0-f914ae3a7a0c Orb-relaxed Fe18 Co1 Si8 B4 boride candidate. CIF SHA256 f914ae3a7a0c797bb8d095007b3d272375f25fe20eeae38461428de73eb08dc3. Unconstrained variable-cell ML relaxation; no DFT. Ouro same-formula novelty, hull stability and magnetic performance remain under review; cross-composition framework novelty is separate. Derived from published source: https://www.crystallography.net/cod/1511073.html. Known scaffold reference https://www.crystallography.net/cod/1511073.html; authored-parent input SHA256 . Terms: See CIF attribution. Published parent framework; the authored mutation is not an experimentally established material. ## Structure - Formula: Fe18CoSi8B4 - Space group: P-42m (#111) - Lattice: a 8.6265, b 8.6256, c 4.3137 Å; α 90, β 90, γ 90° - Atoms in the cell: 31 - Volume: 320.977 ų - Density: 6.891 g/cm³ ## Contents ```cif # { # "campaign": "magnetic_frontier_20261019", # "id": "bs685_Co_site0", # "parent_cif_sha256": "a867feaf55015a59fe068421a60e7e3468958f067a31577f95c7737f1c393f76", # "GPAC_program_sha256": "712ef5665b52195ebec8969dd40c57840974bfe1643cf4eb5bf87583239f2f84", # "published_provenance": { # "source_kind": "GPAC_BOROSILICIDE_CHAIN_CHEMISTRY_DERIVATIVE", # "source": { # "path": "/Users/willgbryan/Desktop/rtrl/tctp_novelty_campaign/magnetic_frontier_20261019/research/borosilicide_chain_contrasts_v685/native_reference.cif", # "sha256": "a867feaf55015a59fe068421a60e7e3468958f067a31577f95c7737f1c393f76" # }, # "sources": [ # { # "path": "/Users/willgbryan/Desktop/rtrl/tctp_novelty_campaign/magnetic_frontier_20261019/research/borosilicide_chain_contrasts_v685/source_table.json", # "sha256": "694da25bffcffd5ed9028eb26da7b3ea945dc3d5851dbf598b095ea532c360e5" # } # ], # "source_url": "https://www.crystallography.net/cod/1511073.html", # "publication_url": "https://www.crystallography.net/cod/1511073.html", # "attribution": "GPAC ordered single-vacancy derivative of disordered Co4.75Si2B, COD1511073. Ti/Co replace one chain Fe, with all positions and metric retained.", # "ancestry": "Six Ti/Co single-chain-site decorations of the existing provisional Fe19Si8B4 ordered metal-vacancy framework, derived from experimental disordered Co4.75Si2B, COD1511073. The occupied support, vacancy arrangement, B/Si positions and source metric are unchanged at authoring. Chemistry alone earns no new-framework credit. This is bounded exploitation of a repeatable near-threshold basin outside the earlier Hf, intergrowth, MAB and Ti6Fe23B8 families; framework novelty and magnetic hardness remain unresolved.", # "source_properties_transferred": false, # "experimental_validation": false # }, # "protocol_sha256": "0a659b9f4a75dc386e77bf23f39916fae7ea8f745a4a7bb22712f7b05fd9a78d", # "relaxation": "unconstrained Orb" # } data_image0 _chemical_formula_structural B4Si8Fe18Co _chemical_formula_sum "B4 Si8 Fe18 Co1" _cell_length_a 8.626486373814325 _cell_length_b 8.625584745467673 _cell_length_c 4.313710704792854 _cell_angle_alpha 90.00012875247434 _cell_angle_beta 89.99841720945854 _cell_angle_gamma 90.00314311941668 _space_group_name_H-M_alt "P 1" _space_group_IT_number 1 loop_ _space_group_symop_operation_xyz 'x, y, z' loop_ _atom_site_type_symbol _atom_site_label _atom_site_symmetry_multiplicity _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy B B1 1.0 0.9999682725402467 9.565082313284572e-05 0.25001059753336163 1.0000 B B2 1.0 0.9999352508243589 0.00011891034868931958 0.7501953018826742 1.0000 B B3 1.0 0.4999983105302852 0.5001326021033871 0.24970515806751634 1.0000 B B4 1.0 0.5000279926577383 0.5001238271941135 0.7504565650998543 1.0000 Si Si1 1.0 0.15343489234103702 0.34658322343034054 0.4618114267365605 1.0000 Si Si2 1.0 0.15352695439278258 0.6537050648848012 0.0382324820146557 1.0000 Si Si3 1.0 0.3317801303045208 0.1682553355025563 0.9992730258127654 1.0000 Si Si4 1.0 0.3316349001490363 0.8319827511850134 0.5006538562486881 1.0000 Si Si5 1.0 0.6679780184425225 0.1683257162999772 0.5008502623462656 1.0000 Si Si6 1.0 0.6680971590066132 0.8319482717036784 0.9992618197960035 1.0000 Si Si7 1.0 0.846358235768462 0.3465211465974996 0.0380739846928407 1.0000 Si Si8 1.0 0.8462643960799828 0.6537671984792329 0.4619648952425316 1.0000 Fe Fe1 1.0 0.0716276713953652 0.2044958462589279 0.9961152958905212 1.0000 Fe Fe2 1.0 0.07156732720317265 0.795735064179855 0.5038980885753164 1.0000 Fe Fe3 1.0 0.20770325357215316 0.07663933731397642 0.49978422372827186 1.0000 Fe Fe4 1.0 0.2076577757471459 0.9236795510797748 0.00025309551167813134 1.0000 Fe Fe5 1.0 0.295592846266674 0.4284144724071501 0.9961808195967262 1.0000 Fe Fe6 1.0 0.29561748414680444 0.5718279493215779 0.5040211474766298 1.0000 Fe Fe7 1.0 0.42337096197763424 0.29234356057926086 0.4997954711823612 1.0000 Fe Fe8 1.0 0.4234541290848301 0.7079192890895527 0.0002678462945695227 1.0000 Fe Fe9 1.0 0.4998731101600418 8.88585350483291e-05 0.2501671467577099 1.0000 Fe Fe10 1.0 0.499886770959501 2.2093253829993672e-05 0.750222872485788 1.0000 Fe Fe11 1.0 0.5764129528531933 0.2923062238428193 0.0003718828611252641 1.0000 Fe Fe12 1.0 0.5763332346115785 0.7079587581599692 0.49972098306092266 1.0000 Fe Fe13 1.0 0.7042298385687734 0.4284452760484944 0.5039107551023476 1.0000 Fe Fe14 1.0 0.7044317889258874 0.5718256112027167 0.9960371555409068 1.0000 Fe Fe15 1.0 0.7921335093547259 0.07659393638822995 0.00038667501527444415 1.0000 Fe Fe16 1.0 0.7920825387935556 0.9236691787242375 0.4998237585854353 1.0000 Fe Fe17 1.0 0.9281575298742175 0.2044060638646322 0.5038965697139695 1.0000 Fe Fe18 1.0 0.9282194696122003 0.7956924371083184 0.9960659954735547 1.0000 Co Co1 1.0 0.9998955054215355 0.5002074137796522 0.749925660978658 1.0000 ``` ## Use it - Download: https://database.ouro.foundation/storage/v1/object/public/public-files/56c30e2b-9868-4313-8927-75459083649d/01a18fcc-947e-7338-85bc-d7b03f18a544.cif?v=1793413912388 - Over Ouro MCP: `download_asset(id="ea2c0c6f-97ac-434c-9fd6-bb085a61d3e1")` returns the file or a download link. - Find routes that take it: `get_compatible_routes(asset_id="ea2c0c6f-97ac-434c-9fd6-bb085a61d3e1")`, then pass it as `input_assets={"file": "ea2c0c6f-97ac-434c-9fd6-bb085a61d3e1"}`. - From Python: `ouro.files.retrieve("ea2c0c6f-97ac-434c-9fd6-bb085a61d3e1")`