Is there a polaron signature in angle-resolved photoemission of CsPbBr₃?

JSON Export

{
  "metadata": {
    "is_last": true, 
    "version": 1, 
    "title": "Is there a polaron signature in angle-resolved photoemission of CsPbBr\u2083?", 
    "keywords": [
      "large-polaron", 
      "angle-resolved photoemission of CsPbBr3", 
      "GW calculations of CsPbBr3"
    ], 
    "description": "The formation of large polarons has been proposed as reason for the high defect tolerance, low mobility, low charge carrier trapping and low nonradiative recombination rates of lead halide perovskites. Recently, direct evidence for large-polaron formation has been reported from a 50% effective mass enhancement in angle-resolved photoemission of CsPbBr\u2083 over theory for the orthorhombic structure. We present in-depth band dispersion measurements of CsPbBr\u2083 and GW calculations which lead to almost identical effective masses at the valence band maximum of 0.203+/-0.016 m\u2080 in experiment and 0.217 m\u2080 in orthorhombic theory. We argue that the effective mass can be explained solely on the basis of electron-electron correlation and large polaron formation cannot be concluded from photoemission data.", 
    "license": "Creative Commons Attribution 4.0 International", 
    "references": [
      {
        "url": "https://doi.org/10.48550/arxiv.2203.15070", 
        "type": "Journal reference", 
        "citation": "M Sajedi, M Krivenkov, D Marchenko, J S\u00e1nchez-Barriga, A K. Chandran, A Varykhalov, E D. L. Rienks, I Aguilera, S Bl\u00fcgel, O Rader, arXiv(2022)", 
        "comment": "Paper where the data is discussed", 
        "doi": "10.48550/ARXIV.2203.15070"
      }
    ], 
    "doi": "10.24435/materialscloud:93-j5", 
    "conceptrecid": "1308", 
    "publication_date": "Apr 11, 2022, 15:08:38", 
    "edited_by": 576, 
    "_oai": {
      "id": "oai:materialscloud.org:1309"
    }, 
    "contributors": [
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany", 
          "Institut f\u00fcr Physik und Astronomie, Universita \u0308t Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam, Germany"
        ], 
        "email": "maryam.sajedi@helmholtz-berlin.de", 
        "familyname": "Sajedi", 
        "givennames": "Maryam"
      }, 
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany"
        ], 
        "email": "maxim.krivenkov@helmholtz-berlin.de", 
        "familyname": "Krivenkov", 
        "givennames": "Maxim"
      }, 
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany"
        ], 
        "email": "dmitry.marchenko@helmholtz-berlin.de", 
        "familyname": "Marchenko", 
        "givennames": "Dmitry"
      }, 
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany"
        ], 
        "email": "jaime.sanchez-barriga@helmholtz-berlin.de", 
        "familyname": "S\u00e1nchez-Barriga", 
        "givennames": "Jaime"
      }, 
      {
        "affiliations": [
          "Peter Gr\u00fcnberg Institut and Institute for Advanced Simulation, Forschungszentrum Ju \u0308lich and JARA, 52425, J\u00fclich Germany"
        ], 
        "email": "a.chandran@fz-juelich.de", 
        "familyname": "K. Chandran", 
        "givennames": "Anoop"
      }, 
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany"
        ], 
        "email": "andrei.varykhalov@helmholtz-berlin.de", 
        "familyname": "Varykhalov", 
        "givennames": "Andrei"
      }, 
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany"
        ], 
        "email": "emile.rienks@helmholtz-berlin.de", 
        "familyname": "D. L. Rienks", 
        "givennames": "Emile"
      }, 
      {
        "affiliations": [
          "Institute of Energy and Climate Research IEK-5 Photovoltaics, Forschungszentrum Ju \u0308lich, 52425 Juelich, Germany"
        ], 
        "email": "i.aguilera@fz-juelich.de", 
        "familyname": "Aguilera", 
        "givennames": "Irene"
      }, 
      {
        "affiliations": [
          "Peter Gr\u00fcnberg Institut and Institute for Advanced Simulation, Forschungszentrum Ju \u0308lich and JARA, 52425, J\u00fclich Germany"
        ], 
        "email": "s.bluegel@fz-juelich.de", 
        "familyname": "Bl\u00fcgel", 
        "givennames": "Stefan"
      }, 
      {
        "affiliations": [
          "Helmholtz-Zentrum Berlin f\u00fcr Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany"
        ], 
        "email": "rader@helmholtz-berlin.de", 
        "familyname": "Rader", 
        "givennames": "Oliver"
      }
    ], 
    "owner": 696, 
    "license_addendum": null, 
    "mcid": "2022.51", 
    "_files": [
      {
        "size": 592630662, 
        "checksum": "md5:9a099cc340a2a91f810e4aff592dca3f", 
        "description": "Calculation data, inputs and outputs", 
        "key": "CsPbBr3.tar.gz"
      }, 
      {
        "size": 4687, 
        "checksum": "md5:96e7b388d4f6fd2a2c913cc607bfb036", 
        "description": "Description of the versions of codes used for calculation and details about input and output files", 
        "key": "README.txt"
      }
    ], 
    "id": "1309", 
    "status": "published"
  }, 
  "revision": 7, 
  "updated": "2022-04-11T13:08:38.303803+00:00", 
  "created": "2022-04-04T02:19:50.609983+00:00", 
  "id": "1309"
}