Self-assembly and magnetic order of bi-molecular 2D spin lattices of M(II,III) Phthalocyanines on Au(111)

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Authors
Liu, Xiunshan
Popova, Olha
Girovsky, Jan
Nowakowski, Jan
Rossmann, Harald
Nijs, Thomas
Moradi, Mina
Mousavi, Fatemeh
Plumb, Nicholas
Radovic, Milan
Author (Corporation)
Publication date
19.08.2021
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Course of study
Type
01A - Journal article
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Parent work
Magnetochemistry
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Link
Series
Series number
Volume
7
Issue / Number
8
Pages / Duration
1-15
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Publisher / Publishing institution
MDPI
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Basel
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Abstract
Single layer low-dimensional materials are presently of emerging interest, including in the context of magnetism. In the present report, on-surface supramolecular architecturing was further developed and employed to create surface supported two-dimensional binary spin arrays on atomically clean non-magnetic Au(111). By chemical programming of the modules, different checkerboards were produced combining phthalocyanines containing metals of different oxidation and spin states, diamagnetic zinc, and a metal-free ‘spacer’. In an in-depth, spectro-microscopy and theoretical account, we correlate the structure and the magnetic properties of these tunable systems and discuss the emergence of 2D Kondo magnetism from the spin-bearing components and via the physico-chemical bonding to the underlying substrate. The contributions of the individual elements, as well as the role of the electronic surface state in the bottom substrate, are discussed, also looking towards further in-depth investigations.
Keywords
X-ray absorption spectroscopy (XAS), X-ray magnetic circular dichroism (XMCD), Kondo screening, Ruderman–Kittel–Kasuya–Yosida (RKKY) exchange interaction, Self-assembly, Metal phthalocyanines, Scanning tunneling microscopy (STM)
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ISBN
ISSN
2312-7481
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Gold
License
'http://creativecommons.org/licenses/by/3.0/us/'
Citation
Liu, X., Popova, O., Girovsky, J., Nowakowski, J., Rossmann, H., Nijs, T., Moradi, M., Mousavi, F., Plumb, N., Radovic, M., Ballav, N., Dreiser, J., Decurtins, S., Pasti, I., Skorodumova, N., Liu, S.-X., Jung, T. A., & Baljozovic, M. (2021). Self-assembly and magnetic order of bi-molecular 2D spin lattices of M(II,III) Phthalocyanines on Au(111). Magnetochemistry, 7(8), 1–15. https://doi.org/10.3390/magnetochemistry7080119