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Long-range ferrimagnetic order in a two-dimensional supramolecular Kondo lattice

Author

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  • Jan Girovsky

    (Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute
    Present address: Department of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands)

  • Jan Nowakowski

    (Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute)

  • Md. Ehesan Ali

    (Institute of Nano Science and Technology
    Uppsala University)

  • Milos Baljozovic

    (Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute)

  • Harald R. Rossmann

    (Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute)

  • Thomas Nijs

    (University of Basel)

  • Elise A. Aeby

    (University of Basel)

  • Sylwia Nowakowska

    (University of Basel)

  • Dorota Siewert

    (University of Basel)

  • Gitika Srivastava

    (Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute
    Present address: Nanoscale Materials Science, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland)

  • Christian Wäckerlin

    (Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL)
    Present address: Nanoscale Materials Science, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland)

  • Jan Dreiser

    (Swiss Light Source, Paul Scherrer Institute)

  • Silvio Decurtins

    (Departement für Chemie und Biochemie, Universität Bern)

  • Shi-Xia Liu

    (Departement für Chemie und Biochemie, Universität Bern)

  • Peter M. Oppeneer

    (Uppsala University)

  • Thomas A. Jung

    (Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute)

  • Nirmalya Ballav

    (Indian Institute of Science Education and Research (IISER))

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.

Suggested Citation

  • Jan Girovsky & Jan Nowakowski & Md. Ehesan Ali & Milos Baljozovic & Harald R. Rossmann & Thomas Nijs & Elise A. Aeby & Sylwia Nowakowska & Dorota Siewert & Gitika Srivastava & Christian Wäckerlin & Ja, 2017. "Long-range ferrimagnetic order in a two-dimensional supramolecular Kondo lattice," Nature Communications, Nature, vol. 8(1), pages 1-8, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15388
    DOI: 10.1038/ncomms15388
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    Cited by:

    1. Jorge Lobo-Checa & Leyre Hernández-López & Mikhail M. Otrokov & Ignacio Piquero-Zulaica & Adriana E. Candia & Pierluigi Gargiani & David Serrate & Fernando Delgado & Manuel Valvidares & Jorge Cerdá & , 2024. "Ferromagnetism on an atom-thick & extended 2D metal-organic coordination network," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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