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  Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on Cu2N/Cu(100)

Etzkorn, M., Hirjibehedin, C. F., Lehnert, A., Ouazi, S., Rusponi, S., Stepanow, S., et al. (2015). Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on Cu2N/Cu(100). Physical Review B, 92(18): 184406. doi:10.1103/PhysRevB.92.184406.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-22BD-9 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0029-22C0-0
Genre: Journal Article

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PhysRevB.92.184406.pdf (Publisher version), 617KB
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http://dx.doi.org/10.1103/PhysRevB.92.184406 (Publisher version)
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http://arxiv.org/abs/1511.06535 (Preprint)
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 Creators:
Etzkorn, M.1, Author
Hirjibehedin, C. F.2, Author
Lehnert, A.1, Author
Ouazi, S.1, Author
Rusponi, S.1, Author
Stepanow, S.3, Author
Gambardella, P.3, Author
Tieg, C.4, Author
Thakur, P.4, Author
Lichtenstein, A. I.5, Author
Shick, A. B.6, Author
Loth, Sebastian7, 8, Author           
Heinrich, A. J.9, Author
Brune, H.1, Author
Affiliations:
1Institut de Physique de la Matière Condensée, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland, ou_persistent22              
2London Centre for Nanotechnology, Department of Physics & Astronomy, Department of Chemistry, UCL, London WC1H 0AH, United Kingdom, ou_persistent22              
3Department of Materials, ETH Zürich, Hönggerbergring 64, CH-8093 Zürich, Switzerland, ou_persistent22              
4European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble, Cedex, France, ou_persistent22              
5University of Hamburg, Jungiusstrasse 9, 20355 Hamburg, Germany, ou_persistent22              
6Institute of Physics, ASCR, Na Slovance 2, CZ-18221 Prague, Czech Republic, ou_persistent22              
7Dynamics of Nanoelectronic Systems, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938290              
8Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany, ou_persistent22              
9IBM Research Division, Almaden Research Center, San Jose, California 95120, USA, ou_persistent22              

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Free keywords: PACS numbers: 78.70.Dm, 68.37.Ef, 75.30.Gw, 75.75.−c
 Abstract: We report on the magnetic properties of Fe and Co adatoms on a Cu2N/Cu(100)−c(2×2) surface investigated by x-ray magnetic dichroism measurements and density functional theory (DFT) calculations including the local coulomb interaction. We compare these results with properties formerly deduced from STM spin excitation spectroscopy (SES) performed on the individual adatoms. In particular we focus on the values of the local magnetic moments determined by XMCD compared to the expectation values derived from the description of the SES data. The angular dependence of the projected magnetic moments along the magnetic field, as measured by XMCD, can be understood on the basis of the SES Hamiltonian. In agreement with DFT, the XMCD measurements show large orbital contributions to the total magnetic moment for both magnetic adatoms.

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Language(s): eng - English
 Dates: 2015-09-212015-02-152015-11-052015-11-01
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.92.184406
arXiv: 1511.06535
 Degree: -

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 92 (18) Sequence Number: 184406 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008