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

Denis S. Krylov; Sebastian Schimmel; Vasilii Dubrovin; Fupin Liu; T. T.Nhung Nguyen; Lukas Spree; Chia Hsiang Chen; Georgios Velkos; Claudiu Bulbucan; Rasmus Westerström; Michał Studniarek; Jan Dreiser; Christian Hess; Bernd Büchner; Stanislav M. Avdoshenko; Alexey A. Popov

doi:10.1002/anie.201913955

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

Denis S. Krylov, Sebastian Schimmel, Vasilii Dubrovin, Fupin Liu, T. T.Nhung Nguyen, Lukas Spree, Chia Hsiang Chen, Georgios Velkos, Claudiu Bulbucan, Rasmus Westerström, Michał Studniarek, Jan Dreiser, Christian Hess, Bernd Büchner, Stanislav M. Avdoshenko, Alexey A. Popov

Research output: Contribution to journal › Article › peer-review

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, 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.

Original language	English
Pages (from-to)	5756-5764
Number of pages	9
Journal	Angewandte Chemie - International Edition
Volume	59
Issue number	14
Early online date	2020
DOIs	https://doi.org/10.1002/anie.201913955
Publication status	Published - 2020 Mar 27

Subject classification (UKÄ)

Materials Chemistry
Physical Sciences

Free keywords

endohedral metallofullerenes
monolayers
scanning probe microscopy
single-molecule magnets
XMCD

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1 Doctoral Thesis (compilation)

Characterization of Magnetic Nanoscale Systems: From Molecules to Particles and Self-Assembled Chains
Bulbucan, C., 2021, Lund: Lund University. 183 p.
Research output: Thesis › Doctoral Thesis (compilation)

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Krylov, D. S., Schimmel, S., Dubrovin, V., Liu, F., Nguyen, T. T. N., Spree, L., Chen, C. H., Velkos, G., Bulbucan, C., Westerström, R., Studniarek, M., Dreiser, J., Hess, C., Büchner, B., Avdoshenko, S. M., & Popov, A. A. (2020). Substrate-Independent Magnetic Bistability in Monolayers of the Single-Molecule Magnet Dy₂ScN@C₈₀ on Metals and Insulators. Angewandte Chemie - International Edition, 59(14), 5756-5764. https://doi.org/10.1002/anie.201913955

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

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, 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.",

keywords = "endohedral metallofullerenes, monolayers, scanning probe microscopy, single-molecule magnets, XMCD",

author = "Krylov, {Denis S.} and Sebastian Schimmel and Vasilii Dubrovin and Fupin Liu and Nguyen, {T. T.Nhung} and Lukas Spree and Chen, {Chia Hsiang} and Georgios Velkos and Claudiu Bulbucan and Rasmus Westerstr{\"o}m and Micha{\l} Studniarek and Jan Dreiser and Christian Hess and Bernd B{\"u}chner and Avdoshenko, {Stanislav M.} and Popov, {Alexey A.}",

year = "2020",

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doi = "10.1002/anie.201913955",

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Krylov, DS, Schimmel, S, Dubrovin, V, Liu, F, Nguyen, TTN, Spree, L, Chen, CH, Velkos, G, Bulbucan, C , Westerström, R, Studniarek, M, Dreiser, J, Hess, C, Büchner, B, Avdoshenko, SM & Popov, AA 2020, 'Substrate-Independent Magnetic Bistability in Monolayers of the Single-Molecule Magnet Dy₂ScN@C₈₀ on Metals and Insulators', Angewandte Chemie - International Edition, vol. 59, no. 14, pp. 5756-5764. https://doi.org/10.1002/anie.201913955

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T1 - Substrate-Independent Magnetic Bistability in Monolayers of the Single-Molecule Magnet Dy2ScN@C80 on Metals and Insulators

AU - Krylov, Denis S.

AU - Schimmel, Sebastian

AU - Dubrovin, Vasilii

AU - Liu, Fupin

AU - Nguyen, T. T.Nhung

AU - Spree, Lukas

AU - Chen, Chia Hsiang

AU - Velkos, Georgios

AU - Bulbucan, Claudiu

AU - Westerström, Rasmus

AU - Studniarek, Michał

AU - Dreiser, Jan

AU - Hess, Christian

AU - Büchner, Bernd

AU - Avdoshenko, Stanislav M.

AU - Popov, Alexey A.

PY - 2020/3/27

Y1 - 2020/3/27

N2 - 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.

AB - 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.

KW - endohedral metallofullerenes

KW - monolayers

KW - scanning probe microscopy

KW - single-molecule magnets

KW - XMCD

U2 - 10.1002/anie.201913955

DO - 10.1002/anie.201913955

M3 - Article

C2 - 31860759

AN - SCOPUS:85078813387

SN - 1433-7851

VL - 59

SP - 5756

EP - 5764

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 14

ER -