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

Vita, Hendrik; Bötticher, Stephan; Leicht, Philipp; Horn, Karsten; Shick, Alexander B.; Máca, Frantisek

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

Dateien

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Datum

2014

Autor:innen

Vita, Hendrik

Bötticher, Stephan

Leicht, Philipp

Horn, Karsten

Shick, Alexander B.

Máca, Frantisek

DOI (zitierfähiger Link)

https://doi.org/10.1103/PhysRevB.90.165432

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review B. 2014, 90(16), 165432. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.90.165432

Zusammenfassung

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.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

VITA, Hendrik, Stephan BÖTTICHER, Philipp LEICHT, Karsten HORN, Alexander B. SHICK, Frantisek MÁCA, 2014. Electronic structure and magnetic properties of cobalt intercalated in graphene on Ir(111). In: Physical Review B. 2014, 90(16), 165432. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.90.165432

BibTex

@article{Vita2014Elect-30128,
  year={2014},
  doi={10.1103/PhysRevB.90.165432},
  title={Electronic structure and magnetic properties of cobalt intercalated in graphene on Ir(111)},
  number={16},
  volume={90},
  issn={0163-1829},
  journal={Physical Review B},
  author={Vita, Hendrik and Bötticher, Stephan and Leicht, Philipp and Horn, Karsten and Shick, Alexander B. and Máca, Frantisek},
  note={Article Number: 165432}
}

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