Distinct spinon and holon dispersions in photoemission spectral functions from one-dimensional SrCuO2.
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| Title: | Distinct spinon and holon dispersions in photoemission spectral functions from one-dimensional SrCuO |
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| Authors: | Kim, B. J.1 bjkim6@gmail.com, Koh, H.2, Rotenberg, E.2, Oh, S.-J.1, Eisaki, H.3, Motoyama, N.4, Uchida, S.4, Tohyama, T.5, Maekawa, S.5,6, Shen, Z.-X.7, Kim, C.8 cykim@phya.yonsei.ac.kr |
| Source: | Nature Physics. Jun2006, Vol. 2 Issue 6, p397-401. 5p. 2 Diagrams, 3 Graphs. |
| Subjects: | Electron emission, Photoemission, Particle size determination, Field emission, Quantitative chemical analysis, Nuclear collective models |
| Abstract: | Spin and charge are inseparable traits of an electron, but in one-dimensional solids, theory predicts their separation into collective modes—as independent excitation quanta (or particles) called spinons and holons. Experimentalists have long sought to verify this effect. Angle-resolved photoemission (ARPES) should provide the most direct evidence of spin–charge separation, as the single quasiparticle peak splits into a spinon–holon two-peak-like structure. Despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Here we report ARPES data from SrCuO2, made possible by recent technological developments, that unequivocally show the spinon–holon two-peak structure and their distinct dispersions. The spinon and holon branches are found to have energy scales of ∼0.43 and 1.3 eV, respectively, which are in quantitative agreement with the theoretical predictions. [ABSTRACT FROM AUTHOR] |
| Copyright of Nature Physics is the property of Springer Nature 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 21014714 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Distinct spinon and holon dispersions in photoemission spectral functions from one-dimensional SrCuO<subscript>2</subscript>. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kim%2C+B%2E+J%2E%22">Kim, B. J.</searchLink><relatesTo>1</relatesTo><i> bjkim6@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Koh%2C+H%2E%22">Koh, H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rotenberg%2C+E%2E%22">Rotenberg, E.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Oh%2C+S%2E-J%2E%22">Oh, S.-J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Eisaki%2C+H%2E%22">Eisaki, H.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Motoyama%2C+N%2E%22">Motoyama, N.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Uchida%2C+S%2E%22">Uchida, S.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Tohyama%2C+T%2E%22">Tohyama, T.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Maekawa%2C+S%2E%22">Maekawa, S.</searchLink><relatesTo>5,6</relatesTo><br /><searchLink fieldCode="AR" term="%22Shen%2C+Z%2E-X%2E%22">Shen, Z.-X.</searchLink><relatesTo>7</relatesTo><br /><searchLink fieldCode="AR" term="%22Kim%2C+C%2E%22">Kim, C.</searchLink><relatesTo>8</relatesTo><i> cykim@phya.yonsei.ac.kr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nature+Physics%22">Nature Physics</searchLink>. Jun2006, Vol. 2 Issue 6, p397-401. 5p. 2 Diagrams, 3 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Electron+emission%22">Electron emission</searchLink><br /><searchLink fieldCode="DE" term="%22Photoemission%22">Photoemission</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+size+determination%22">Particle size determination</searchLink><br /><searchLink fieldCode="DE" term="%22Field+emission%22">Field emission</searchLink><br /><searchLink fieldCode="DE" term="%22Quantitative+chemical+analysis%22">Quantitative chemical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+collective+models%22">Nuclear collective models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Spin and charge are inseparable traits of an electron, but in one-dimensional solids, theory predicts their separation into collective modes—as independent excitation quanta (or particles) called spinons and holons. Experimentalists have long sought to verify this effect. Angle-resolved photoemission (ARPES) should provide the most direct evidence of spin–charge separation, as the single quasiparticle peak splits into a spinon–holon two-peak-like structure. Despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Here we report ARPES data from SrCuO2, made possible by recent technological developments, that unequivocally show the spinon–holon two-peak structure and their distinct dispersions. The spinon and holon branches are found to have energy scales of ∼0.43 and 1.3 eV, respectively, which are in quantitative agreement with the theoretical predictions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nature Physics is the property of Springer Nature 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: 10.1038/nphys316 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 397 Subjects: – SubjectFull: Electron emission Type: general – SubjectFull: Photoemission Type: general – SubjectFull: Particle size determination Type: general – SubjectFull: Field emission Type: general – SubjectFull: Quantitative chemical analysis Type: general – SubjectFull: Nuclear collective models Type: general Titles: – TitleFull: Distinct spinon and holon dispersions in photoemission spectral functions from one-dimensional SrCuO2. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kim, B. J. – PersonEntity: Name: NameFull: Koh, H. – PersonEntity: Name: NameFull: Rotenberg, E. – PersonEntity: Name: NameFull: Oh, S.-J. – PersonEntity: Name: NameFull: Eisaki, H. – PersonEntity: Name: NameFull: Motoyama, N. – PersonEntity: Name: NameFull: Uchida, S. – PersonEntity: Name: NameFull: Tohyama, T. – PersonEntity: Name: NameFull: Maekawa, S. – PersonEntity: Name: NameFull: Shen, Z.-X. – PersonEntity: Name: NameFull: Kim, C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2006 Type: published Y: 2006 Identifiers: – Type: issn-print Value: 17452473 Numbering: – Type: volume Value: 2 – Type: issue Value: 6 Titles: – TitleFull: Nature Physics Type: main |
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