Internal consistency of multi-tier GW+EDMFT

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{
  "updated": "2025-01-07T08:42:52.183603+00:00", 
  "created": "2025-01-06T14:43:04.686023+00:00", 
  "revision": 6, 
  "id": "2519", 
  "metadata": {
    "title": "Internal consistency of multi-tier GW+EDMFT", 
    "edited_by": 576, 
    "is_last": true, 
    "doi": "10.24435/materialscloud:9b-5n", 
    "license": "Creative Commons Attribution Non Commercial 4.0 International", 
    "publication_date": "Jan 07, 2025, 09:42:52", 
    "mcid": "2025.1", 
    "contributors": [
      {
        "email": "ruslan.mushkaev@unifr.ch", 
        "affiliations": [
          "Department of Physics, University of Fribourg, 1700, Fribourg, Switzerland"
        ], 
        "familyname": "Mushkaev", 
        "givennames": "Ruslan"
      }, 
      {
        "affiliations": [
          "Department of Quantum Matter Physics, University of Geneva, Geneva 4, Switzerland"
        ], 
        "familyname": "Petocchi", 
        "givennames": "Francesco"
      }, 
      {
        "affiliations": [
          "Department of Physics, University of Fribourg, 1700, Fribourg, Switzerland"
        ], 
        "familyname": "Christiansson", 
        "givennames": "Viktor"
      }, 
      {
        "affiliations": [
          "Department of Physics, University of Fribourg, 1700, Fribourg, Switzerland"
        ], 
        "familyname": "Werner", 
        "givennames": "Philipp"
      }
    ], 
    "status": "published", 
    "owner": 1617, 
    "description": "The multi-tier GW+EDMFT scheme is an ab-initio method for calculating the electronic structure of correlated materials. While the approach is free from ad-hoc parameters, it requires a selection of appropriate energy windows for describing low-energy and strongly correlated physics. In this study, we test the consistency of the multi-tier description by considering different low-energy windows for a series of cubic SrXO\u2083 (X\u2009=\u2009V, Cr, Mn) perovskites. Specifically, we compare the 3-orbital t<sub>2g</sub> model, the 5-orbital t<sub>2g</sub>\u2009+\u2009e<sub>g</sub> model, the 12-orbital t<sub>2g</sub> + O<sub>p</sub> model, and (in the case of SrVO\u2083) the 14-orbital t<sub>2g</sub>\u2009+\u2009e<sub>g</sub>\u2009+\u2009O<sub>p</sub> model and compare the results to available photoemission and X-ray absorption measurements. The multi-tier method yields consistent results for the t<sub>2g</sub> and t<sub>2g</sub>\u2009+\u2009e<sub>g</sub> low-energy windows, while the models with O<sub>p</sub> states produce stronger correlation effects and mostly agree well with experiment, especially in the unoccupied part of the spectrum. We also discuss the consistency between the fermionic and bosonic spectral functions and the physical origin of satellite features, and present momentum-resolved charge susceptibilities.", 
    "_files": [
      {
        "checksum": "md5:bc57a52a77d0a6e69c235cc603e4fab6", 
        "size": 2866, 
        "description": "Lists the plotting scripts and their output.", 
        "key": "README.txt"
      }, 
      {
        "checksum": "md5:92834b8700323e0e81a64e4d548c0a7a", 
        "size": 785086873, 
        "description": "Contains all the raw data and plotting scripts necessary to plot all the main and supplemental figures in the publication.", 
        "key": "srxo3_mat_cloud.tar.gz"
      }
    ], 
    "keywords": [
      "DMFT", 
      "GW", 
      "ab initio", 
      "perovskite", 
      "GW+EDMFT", 
      "EDMFT"
    ], 
    "conceptrecid": "2518", 
    "references": [
      {
        "doi": "10.1038/s41524-024-01376-6", 
        "citation": "Mushkaev, R., Petocchi, F., Christiansson, V. et al. Internal consistency of multi-tier GW+EDMFT. npj Comput Mater 10, 182 (2024)", 
        "type": "Journal reference", 
        "url": "https://www.nature.com/articles/s41524-024-01376-6"
      }
    ], 
    "version": 1, 
    "_oai": {
      "id": "oai:materialscloud.org:2519"
    }, 
    "license_addendum": null, 
    "id": "2519"
  }
}