Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations
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{
"revision": 9,
"id": "635",
"created": "2020-11-08T15:12:02.686696+00:00",
"metadata": {
"doi": "10.24435/materialscloud:vp-wm",
"status": "published",
"title": "Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations",
"mcid": "2020.143",
"license_addendum": null,
"_files": [
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"_oai": {
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},
"keywords": [
"Density-functional perturbation theory",
"Hubbard-corrected density-functional theory",
"extended Hubbard functionals",
"self-interaction corrections",
"Hubbard on-site U and inter-site V parameters",
"CSCS",
"MARVEL",
"ultrasoft pseudopotentials",
"projector-augmented wave method",
"Li-ion batteries",
"voltages",
"LiMnPO4",
"MnPO4",
"linear-response theory",
"monochromatic perturbations"
],
"conceptrecid": "634",
"is_last": true,
"references": [
{
"type": "Journal reference",
"doi": "10.1103/PhysRevB.103.045141",
"url": "https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.045141",
"comment": "Paper in which the method is described",
"citation": "I. Timrov, N. Marzari, M. Cococcioni, Phys. Rev. B 103, 045141 (2021)."
},
{
"type": "Preprint",
"url": "https://arxiv.org/abs/2011.03271",
"comment": "Preprint where the method is described",
"citation": "I. Timrov, N. Marzari, M. Cococcioni, \"Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations\", arXiv:2011.03271."
}
],
"publication_date": "Nov 09, 2020, 12:21:02",
"license": "Creative Commons Attribution 4.0 International",
"id": "635",
"description": "The self-consistent evaluation of Hubbard parameters using linear-response theory is crucial for quantitatively predictive calculations based on Hubbard-corrected density-functional theory. Here, we extend a recently-introduced approach based on density-functional perturbation theory (DFPT) for the calculation of the on-site Hubbard U to also compute the inter-site Hubbard V. DFPT allows to reduce significantly computational costs, improve numerical accuracy, and fully automate the calculation of the Hubbard parameters by recasting the linear response of a localized perturbation into an array of monochromatic perturbations that can be calculated in the primitive cell. In addition, here we generalize the entire formalism from norm-conserving to ultrasoft and projector-augmented wave formulations, and to metallic ground states. After benchmarking DFPT against the conventional real-space Hubbard linear response in a supercell, we demonstrate the effectiveness of the present extended Hubbard formulation in determining the equilibrium crystal structure of Li\u2093MnPO\u2084 (x=0,1) and the subtle energetics of Li intercalation.",
"version": 1,
"contributors": [
{
"email": "iurii.timrov@epfl.ch",
"affiliations": [
"Theory and Simulation of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland"
],
"familyname": "Timrov",
"givennames": "Iurii"
},
{
"email": "nicola.marzari@epfl.ch",
"affiliations": [
"Theory and Simulation of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland"
],
"familyname": "Marzari",
"givennames": "Nicola"
},
{
"email": "matteo.cococcioni@unipv.it",
"affiliations": [
"Department of Physics, University of Pavia, via Bassi 6, I-27100 Pavia, Italy"
],
"familyname": "Cococcioni",
"givennames": "Matteo"
}
],
"edited_by": 5
},
"updated": "2021-02-01T10:26:14.527789+00:00"
}