Evidence of spin and charge density waves in Chromium electronic bands
Abstract The incommensurate spin density wave (SDW) of Chromium represents the classic example of itinerant antiferromagnetism induced by the nesting of the Fermi surface, which is further enriched by the co-presence of a charge density wave (CDW). Here, we explore its electronic band structure usin...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-025-00789-0 |
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| author | Federico Bisti Paolo Settembri Jan Minár Victor A. Rogalev Roland Widmer Oliver Gröning Ming Shi Thorsten Schmitt Gianni Profeta Vladimir N. Strocov |
| author_facet | Federico Bisti Paolo Settembri Jan Minár Victor A. Rogalev Roland Widmer Oliver Gröning Ming Shi Thorsten Schmitt Gianni Profeta Vladimir N. Strocov |
| author_sort | Federico Bisti |
| collection | DOAJ |
| description | Abstract The incommensurate spin density wave (SDW) of Chromium represents the classic example of itinerant antiferromagnetism induced by the nesting of the Fermi surface, which is further enriched by the co-presence of a charge density wave (CDW). Here, we explore its electronic band structure using soft-X-ray angle-resolved photoemission spectroscopy (ARPES) for a proper bulk-sensitive investigation. We find that the long-range magnetic order gives rise to a very rich ARPES signal, which can only be interpreted with a proper first-principles description of the SDW and CDW, combined with a band unfolding procedure, reaching a remarkable agreement with experiments. Additional features of the SDW order are obscured by superimposed effects related to the photoemission process, which, unexpectedly, are not predicted by the free-electron model for the final states. We demonstrate that, even for excitation photon energies up to 1 keV, a multiple scattering description of the photoemission final states is required. |
| format | Article |
| id | doaj-art-041efd86ca814af7aab658793beb1c56 |
| institution | DOAJ |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-041efd86ca814af7aab658793beb1c562025-08-20T03:06:57ZengNature PortfolioCommunications Materials2662-44432025-04-01611710.1038/s43246-025-00789-0Evidence of spin and charge density waves in Chromium electronic bandsFederico Bisti0Paolo Settembri1Jan Minár2Victor A. Rogalev3Roland Widmer4Oliver Gröning5Ming Shi6Thorsten Schmitt7Gianni Profeta8Vladimir N. Strocov9Dipartimento di Scienze Fisiche e Chimiche, Università dell’AquilaDipartimento di Scienze Fisiche e Chimiche, Università dell’AquilaNew Technologies Research Centre, University of West BohemiaSwiss Light Source, Paul Scherrer Institutenanotech@surfaces Laboratory, EMPA, Swiss Federal Laboratories for Materials Science and Technologynanotech@surfaces Laboratory, EMPA, Swiss Federal Laboratories for Materials Science and TechnologySwiss Light Source, Paul Scherrer InstituteSwiss Light Source, Paul Scherrer InstituteDipartimento di Scienze Fisiche e Chimiche, Università dell’AquilaSwiss Light Source, Paul Scherrer InstituteAbstract The incommensurate spin density wave (SDW) of Chromium represents the classic example of itinerant antiferromagnetism induced by the nesting of the Fermi surface, which is further enriched by the co-presence of a charge density wave (CDW). Here, we explore its electronic band structure using soft-X-ray angle-resolved photoemission spectroscopy (ARPES) for a proper bulk-sensitive investigation. We find that the long-range magnetic order gives rise to a very rich ARPES signal, which can only be interpreted with a proper first-principles description of the SDW and CDW, combined with a band unfolding procedure, reaching a remarkable agreement with experiments. Additional features of the SDW order are obscured by superimposed effects related to the photoemission process, which, unexpectedly, are not predicted by the free-electron model for the final states. We demonstrate that, even for excitation photon energies up to 1 keV, a multiple scattering description of the photoemission final states is required.https://doi.org/10.1038/s43246-025-00789-0 |
| spellingShingle | Federico Bisti Paolo Settembri Jan Minár Victor A. Rogalev Roland Widmer Oliver Gröning Ming Shi Thorsten Schmitt Gianni Profeta Vladimir N. Strocov Evidence of spin and charge density waves in Chromium electronic bands Communications Materials |
| title | Evidence of spin and charge density waves in Chromium electronic bands |
| title_full | Evidence of spin and charge density waves in Chromium electronic bands |
| title_fullStr | Evidence of spin and charge density waves in Chromium electronic bands |
| title_full_unstemmed | Evidence of spin and charge density waves in Chromium electronic bands |
| title_short | Evidence of spin and charge density waves in Chromium electronic bands |
| title_sort | evidence of spin and charge density waves in chromium electronic bands |
| url | https://doi.org/10.1038/s43246-025-00789-0 |
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