Electronic structure investigations of quasicrystals
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| Title: | Electronic structure investigations of quasicrystals |
|---|---|
| Authors: | Rotenberg, E.1 erotenberg@lbl.gov, Theis, W.2, Horn, K.3 |
| Source: | Progress in Surface Science. Aug2004, Vol. 75 Issue 3-8, p237-253. 17p. |
| Subjects: | Crystals, Electron emission, Quasicrystals, Photoemission |
| Abstract: | We present a review of the determination of density of states (DOS) of quasicrystals using valence band photoemission spectroscopy. The absence of fine or spiky structure in the angle-integrated DOS of quasicrystals suggests the possibility of delocalized electronic states. These were confirmed with angle-resolved photoemission studies, which clearly establish the presence of dispersing features attributed to momentum-dependent bandstructure. Such dispersing states are observed not only for deeper-lying sp states, but also for d-derived bands near the Fermi level. Data from three different high symmetry surfaces of decagonal Al–Ni–Co, an ideal model system, are presented. We find that only a few dominant reciprocal lattice vectors are sufficient to describe the quasiperiodic potential, and the implications for electronic properties are discussed. [Copyright &y& Elsevier] |
| Copyright of Progress in Surface Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 13902735 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Electronic structure investigations of quasicrystals – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rotenberg%2C+E%2E%22">Rotenberg, E.</searchLink><relatesTo>1</relatesTo><i> erotenberg@lbl.gov</i><br /><searchLink fieldCode="AR" term="%22Theis%2C+W%2E%22">Theis, W.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Horn%2C+K%2E%22">Horn, K.</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Progress+in+Surface+Science%22">Progress in Surface Science</searchLink>. Aug2004, Vol. 75 Issue 3-8, p237-253. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Crystals%22">Crystals</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+emission%22">Electron emission</searchLink><br /><searchLink fieldCode="DE" term="%22Quasicrystals%22">Quasicrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Photoemission%22">Photoemission</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We present a review of the determination of density of states (DOS) of quasicrystals using valence band photoemission spectroscopy. The absence of fine or spiky structure in the angle-integrated DOS of quasicrystals suggests the possibility of delocalized electronic states. These were confirmed with angle-resolved photoemission studies, which clearly establish the presence of dispersing features attributed to momentum-dependent bandstructure. Such dispersing states are observed not only for deeper-lying sp states, but also for d-derived bands near the Fermi level. Data from three different high symmetry surfaces of decagonal Al–Ni–Co, an ideal model system, are presented. We find that only a few dominant reciprocal lattice vectors are sufficient to describe the quasiperiodic potential, and the implications for electronic properties are discussed. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Progress in Surface Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.progsurf.2004.05.002 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 237 Subjects: – SubjectFull: Crystals Type: general – SubjectFull: Electron emission Type: general – SubjectFull: Quasicrystals Type: general – SubjectFull: Photoemission Type: general Titles: – TitleFull: Electronic structure investigations of quasicrystals Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rotenberg, E. – PersonEntity: Name: NameFull: Theis, W. – PersonEntity: Name: NameFull: Horn, K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2004 Type: published Y: 2004 Identifiers: – Type: issn-print Value: 00796816 Numbering: – Type: volume Value: 75 – Type: issue Value: 3-8 Titles: – TitleFull: Progress in Surface Science Type: main |
| ResultId | 1 |
