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Substrate-Independent Magnetic Bistability in Monolayers of the Single-Molecule Magnet Dy2ScN@C80 on Metals and Insulators

Krylov, Denis S. ; Schimmel, Sebastian ; Dubrovin, Vasilii ; Liu, Fupin ; Nguyen, T. T.Nhung ; Spree, Lukas ; Chen, Chia Hsiang ; Velkos, Georgios ; Bulbucan, Claudiu LU and Westerström, Rasmus LU , et al. (2020) In Angewandte Chemie - International Edition 59(14). p.5756-5764
Abstract

Magnetic hysteresis is demonstrated for monolayers of the single-molecule magnet (SMM) Dy2ScN@C80 deposited on Au(111), Ag(100), and MgO|Ag(100) surfaces by vacuum sublimation. The topography and electronic structure of Dy2ScN@C80 adsorbed on Au(111) were studied by STM. X-ray magnetic CD studies show that the Dy2ScN@C80 monolayers exhibit similarly broad magnetic hysteresis independent on the substrate used, but the orientation of the Dy2ScN cluster depends strongly on the surface. DFT calculations show that the extent of the electronic interaction of the fullerene molecules with the surface is increasing dramatically from MgO to Au(111) and Ag(100). However,... (More)

Magnetic hysteresis is demonstrated for monolayers of the single-molecule magnet (SMM) Dy2ScN@C80 deposited on Au(111), Ag(100), and MgO|Ag(100) surfaces by vacuum sublimation. The topography and electronic structure of Dy2ScN@C80 adsorbed on Au(111) were studied by STM. X-ray magnetic CD studies show that the Dy2ScN@C80 monolayers exhibit similarly broad magnetic hysteresis independent on the substrate used, but the orientation of the Dy2ScN cluster depends strongly on the surface. DFT calculations show that the extent of the electronic interaction of the fullerene molecules with the surface is increasing dramatically from MgO to Au(111) and Ag(100). However, the charge redistribution at the fullerene-surface interface is fully absorbed by the carbon cage, leaving the state of the endohedral cluster intact. This Faraday cage effect of the fullerene preserves the magnetic bistability of fullerene-SMMs on conducting substrates and facilitates their application in molecular spintronics.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
endohedral metallofullerenes, monolayers, scanning probe microscopy, single-molecule magnets, XMCD
in
Angewandte Chemie - International Edition
volume
59
issue
14
pages
9 pages
publisher
John Wiley and Sons
external identifiers
  • pmid:31860759
  • scopus:85078813387
ISSN
1433-7851
DOI
10.1002/anie.201913955
language
English
LU publication?
yes
id
33da35b1-1401-4c99-96ec-3305c4f0b78c
date added to LUP
2020-02-17 10:45:24
date last changed
2021-04-06 04:08:12
@article{33da35b1-1401-4c99-96ec-3305c4f0b78c,
  abstract     = {<p>Magnetic hysteresis is demonstrated for monolayers of the single-molecule magnet (SMM) Dy<sub>2</sub>ScN@C<sub>80</sub> deposited on Au(111), Ag(100), and MgO|Ag(100) surfaces by vacuum sublimation. The topography and electronic structure of Dy<sub>2</sub>ScN@C<sub>80</sub> adsorbed on Au(111) were studied by STM. X-ray magnetic CD studies show that the Dy<sub>2</sub>ScN@C<sub>80</sub> monolayers exhibit similarly broad magnetic hysteresis independent on the substrate used, but the orientation of the Dy<sub>2</sub>ScN cluster depends strongly on the surface. DFT calculations show that the extent of the electronic interaction of the fullerene molecules with the surface is increasing dramatically from MgO to Au(111) and Ag(100). However, the charge redistribution at the fullerene-surface interface is fully absorbed by the carbon cage, leaving the state of the endohedral cluster intact. This Faraday cage effect of the fullerene preserves the magnetic bistability of fullerene-SMMs on conducting substrates and facilitates their application in molecular spintronics.</p>},
  author       = {Krylov, Denis S. and Schimmel, Sebastian and Dubrovin, Vasilii and Liu, Fupin and Nguyen, T. T.Nhung and Spree, Lukas and Chen, Chia Hsiang and Velkos, Georgios and Bulbucan, Claudiu and Westerström, Rasmus and Studniarek, Michał and Dreiser, Jan and Hess, Christian and Büchner, Bernd and Avdoshenko, Stanislav M. and Popov, Alexey A.},
  issn         = {1433-7851},
  language     = {eng},
  month        = {03},
  number       = {14},
  pages        = {5756--5764},
  publisher    = {John Wiley and Sons},
  series       = {Angewandte Chemie - International Edition},
  title        = {Substrate-Independent Magnetic Bistability in Monolayers of the Single-Molecule Magnet Dy<sub>2</sub>ScN@C<sub>80</sub> on Metals and Insulators},
  url          = {http://dx.doi.org/10.1002/anie.201913955},
  doi          = {10.1002/anie.201913955},
  volume       = {59},
  year         = {2020},
}