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  Electronic structure and magnetic properties of cobalt intercalated in graphene on Ir(111)

Vita, H., Böttcher, S., Leicht, P., Horn, K., Shick, A. B., & Máca, F. (2014). Electronic structure and magnetic properties of cobalt intercalated in graphene on Ir(111). Physical Review B, 90(16): 164532. doi:10.1103/PhysRevB.90.165432.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0024-3F3C-8 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0024-3F3E-4
Genre: Journal Article

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PhysRevB.90.165432.pdf (Publisher version), 3MB
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 Creators:
Vita, Hendrik1, Author           
Böttcher, Stefan1, Author           
Leicht, P.2, Author
Horn, Karsten1, Author           
Shick, A. B.3, Author
Máca, F.3, Author
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              
2Universität Konstanz, Fachbereich Physik, Universitätsstrasse 10, 78457 Konstanz, Germany, ou_persistent22              
3Institute of Physics ASCR, Na Slovance 2, 18221 Prague, Czech Republic, ou_persistent22              

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 Abstract: Using a combination of photoemission and x-ray magnetic circular dichroism (XMCD), we characterize the growth and the electronic as well as magnetic structure of cobalt layers intercalated in between graphene and Ir(111). We demonstrate that magnetic ordering exists beyond one monolayer intercalation, and determine the Co orbital and spin magnetic moments. XMCD from the carbon edge shows an induced magnetic moment in the graphene layer, oriented antiparallel to that of cobalt. The XMCD experimental data are discussed in comparison to our results of first-principles electronic structure calculations. It is shown that good agreement between theory and experiment for the Co magnetic moments can be achieved when the local-spin-density approximation plus the Hubbard U (LSDA+U) is used.

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Language(s): eng - English
 Dates: 2014-08-222014-10-222014-10-22
 Publication Status: Issued
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.90.165432
 Degree: -

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Title: Physical Review B
  Other : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 90 (16) Sequence Number: 164532 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008