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  Mixed 4f population of Tm adatoms on insulating Cu2N islands

Coffey, D., de la Fuente, C., Ciria, M., Serrate, D., Loth, S., & Arnaudas, J. I. (2020). Mixed 4f population of Tm adatoms on insulating Cu2N islands. Physical Chemistry Chemical Physics, 22(1), 196-202. doi:10.1039/C9CP04413B.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-D867-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-D86A-1
Genre: Journal Article

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https://dx.doi.org/10.1039/C9CP04413B (Publisher version)
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 Creators:
Coffey, D.1, 2, 3, Author
de la Fuente, C.2, 3, Author
Ciria, M.2, 3, Author
Serrate, D.2, 3, Author
Loth, S.4, 5, 6, Author              
Arnaudas, J. I.1, 3, Author
Affiliations:
1Laboratorio de Microscopías Avanzadas, Instituto de Nanociencia de Aragón, Universidad de Zaragoza, ou_persistent22              
2Instituto de Ciencia de Materiales de Aragón, Consejo Superior de Investigaciones Científicas, ou_persistent22              
3Departamento de Física de la Materia Condensada, Universidad de Zaragoza, ou_persistent22              
4Max Planck Institute for Solid State Research, ou_persistent22              
5Dynamics of Nanoelectronic Systems, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938290              
6Institute for Functional Matter and Quantum Technologies, University of Stuttgart, ou_persistent22              

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 Abstract: The electronic properties of Tm and Lu atoms adsorbed on nanoscale Cu2N insulating islands and on a clean Cu(100) surface have been investigated by scanning tunnelling microscopy and spectroscopy, and density functional calculations modelling the electronic structure of the rare earth atoms were performed. While Lu adatoms display the same spectra on both surfaces, tunnelling spectra of Tm on Cu2N indicate a state at ≃0.8 V or ≃1.9 V bias, depending on the 4f population of the adatom, 4f12 or 4f13, which is not present on Tm atoms adsorbed on Cu(100). Although inelastic 4f-spin-flip excitations were not detected, variation of tunnelling through the strongly correlated d-electrons indicates that the insulating layer opens a pathway to access the electronic state of those 4f electrons in the single adatom.

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Language(s): eng - English
 Dates: 2019-08-082019-11-142019-11-182020-01-07
 Publication Status: Published in print
 Pages: 7
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/C9CP04413B
 Degree: -

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Title: Physical Chemistry Chemical Physics
  Abbreviation : Phys. Chem. Chem. Phys.
Source Genre: Journal
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Publ. Info: Cambridge, England : Royal Society of Chemistry
Pages: 7 Volume / Issue: 22 (1) Sequence Number: - Start / End Page: 196 - 202 Identifier: ISSN: 1463-9076
CoNE: https://pure.mpg.de/cone/journals/resource/954925272413_1