Girovsky, Jan and Nowakowski, Jan and Ali, Ehesan and Baljozovic, Milos and Rossmann, Harald R. and Nijs, Thomas and Aeby, Elise A. and Nowakowska, Sylwia and Siewert, Dorota and Srivastava, Gitika and Wäckerlin, Christian and Dreiser, Jan and Decurtins, Silvio and Liu, Shi-Xia and Oppeneer, Peter M. and Jung, Thomas A. and Ballav, Nirmalya. (2017) Long-range ferrimagnetic order in a two-dimensional supramolecular Kondo lattice. Nature Communications, 8. p. 15388.
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Official URL: https://edoc.unibas.ch/94512/
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Abstract
Realization of long-range magnetic order in surface-supported two-dimensional systems has been challenging, mainly due to the competition between fundamental magnetic interactions as the short-range Kondo effect and spin-stabilizing magnetic exchange interactions. Spin-bearing molecules on conducting substrates represent a rich platform to investigate the interplay of these fundamental magnetic interactions. Here we demonstrate the direct observation of long-range ferrimagnetic order emerging in a two-dimensional supramolecular Kondo lattice. The lattice consists of paramagnetic hexadeca-fluorinated iron phthalocyanine (FeFPc) and manganese phthalocyanine (MnPc) molecules co-assembled into a checkerboard pattern on single-crystalline Au(111) substrates. Remarkably, the remanent magnetic moments are oriented in the out-of-plane direction with significant contribution from orbital moments. First-principles calculations reveal that the FeFPc-MnPc antiferromagnetic nearest-neighbour coupling is mediated by the Ruderman-Kittel-Kasuya-Yosida exchange interaction via the Au substrate electronic states. Our findings suggest the use of molecular frameworks to engineer novel low-dimensional magnetically ordered materials and their application in molecular quantum devices.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik |
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UniBasel Contributors: | Jung, Thomas A. |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | Nature Research |
e-ISSN: | 2041-1723 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
Language: | English |
Identification Number: |
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edoc DOI: | |
Last Modified: | 24 May 2023 07:41 |
Deposited On: | 24 May 2023 07:41 |
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