{ "content-origin" "LAMMPS package 22-Sep-2017" "contributor-id" "fa1c5480-8f03-4349-95c1-96c205a7a333" "description" "A tight-binding variable-charge model aimed at performing large-scale realistic simulations of bulk,\nsurfaces and interfaces of aluminum oxides have been developed. This model is based on the charge\nequilibration (QEq) method and explicitly takes into account the mixed iono\u2013covalent character of the\nmetal\u2013oxygen bond by means of a tight-binding analytical approach in the second-moment approximation of the electronic structure. The parameters of the model were optimized to reproduce structural and\nenergetic properties of the a-Al2O3 corundum structure at room temperature and pressure. The model\nexhibits a good transferability between five alumina polymorphs: corundum, Rh2O3 (II)-type, perovskite\n(Pbnm), CaIrO3-type and U2S3-type structures. The limit length is rc2sm=dc2**2." "developer" [ "d2612b53-b58e-494c-89d8-8a6871a426f4" "866ec23f-e57c-49b3-8184-fda75e9e3d3c" "bd84e210-e9e7-4150-b7e4-fa088fefe374" "22169098-ace0-4633-b334-f61d852e53f3" ] "doi" "10.25950/7737dab6" "domain" "openkim.org" "extended-id" "Sim_LAMMPS_SMTBQ_SallesPolitanoAmzallag_2016_TiO__SM_349577644423_000" "kim-api-version" "2.1" "maintainer-id" "fa1c5480-8f03-4349-95c1-96c205a7a333" "potential-type" "smtbq" "publication-year" "2019" "run-compatibility" "portable-models" "simulator-name" "LAMMPS" "simulator-potential" "smtbq" "source-citations" [ { "author" "Salles, N. and Politano, O. and Amzallag, E. and T{\\'{e}}tot, R." "doi" "10.1016/j.commatsci.2015.09.017" "journal" "Computational Materials Science" "month" "jan" "pages" "181--189" "publisher" "Elsevier {BV}" "recordkey" "SM_349577644423_000a" "recordprimary" "recordprimary" "recordtype" "article" "title" "Molecular dynamics study of high-pressure alumina polymorphs with a tight-binding variable-charge model" "url" "https://doi.org/10.1016/j.commatsci.2015.09.017" "volume" "111" "year" "2016" } ] "species" [ "O" "Ti" ] "title" "LAMMPS SMTBQ potential for the Ti-O system developed by Salles et al. (2016) v000" }