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  Magnetic fingerprint of individual Fe4 molecular magnets under compression by a scanning tunnelling microscope

Burgess, J. A. J., Malavolti, L., Lanzilotto, V., Mannini, M., Yan, S., Ninova, S., et al. (2015). Magnetic fingerprint of individual Fe4 molecular magnets under compression by a scanning tunnelling microscope. Nature Communications, 6: 8216. doi:10.1038/ncomms9216.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-5BD5-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0028-5BD6-2
Genre: Journal Article

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ncomms9216.pdf (Publisher version), 824KB
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http://dx.doi.org/10.1038/ncomms9216 (Publisher version)
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 Creators:
Burgess, Jacob A. J.1, 2, Author              
Malavolti, Luigi1, 2, 3, Author              
Lanzilotto, Valeria3, Author
Mannini, Matteo3, Author
Yan, Shichao1, 2, Author              
Ninova, Silviya3, Author
Totti, Federico3, Author
Rolf-Pissarczyk, Steffen1, 2, Author              
Cornia, Andrea4, Author
Sessoli, Roberta3, Author
Loth, Sebastian1, 2, Author              
Affiliations:
1Dynamics of Nanoelectronic Systems, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938290              
2Max Planck Institute for Solid State Research, ou_persistent22              
3Department of Chemistry ‘Ugo Schiff’, University of Florence & INSTM RU of Florence, 50019 Sesto Fiorentino, Italy, ou_persistent22              
4Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia & INSTM RU of Modena and Reggio Emilia, 41125 Modena, Italy, ou_persistent22              

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Free keywords: Physical sciences; Applied physics; Atomic and molecular physics; Condensed matter
 Abstract: Single-molecule magnets (SMMs) present a promising avenue to develop spintronic technologies. Addressing individual molecules with electrical leads in SMM-based spintronic devices remains a ubiquitous challenge: interactions with metallic electrodes can drastically modify the SMM’s properties by charge transfer or through changes in the molecular structure. Here, we probe electrical transport through individual Fe4 SMMs using a scanning tunnelling microscope at 0.5 K. Correlation of topographic and spectroscopic information permits identification of the spin excitation fingerprint of intact Fe4 molecules. Building from this, we find that the exchange coupling strength within the molecule’s magnetic core is significantly enhanced. First-principles calculations support the conclusion that this is the result of confinement of the molecule in the two-contact junction formed by the microscope tip and the sample surface.

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Language(s): eng - English
 Dates: 2015-04-212015-07-302015-09-11
 Publication Status: Published online
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1038/ncomms9216
 Degree: -

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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 6 Sequence Number: 8216 Start / End Page: - Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723