Long-range ferrimagnetic order in a two-dimensional supramolecular Kondo lattice.
- Girovsky J Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Nowakowski J Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Ali ME Institute of Nano Science and Technology, Phase-10, Sector-64, Mohali, Punjab-160062, India.
- Baljozovic M Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Rossmann HR Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Nijs T Department of Physics, University of Basel, 4056 Basel, Switzerland.
- Aeby EA Department of Physics, University of Basel, 4056 Basel, Switzerland.
- Nowakowska S Department of Physics, University of Basel, 4056 Basel, Switzerland.
- Siewert D Department of Physics, University of Basel, 4056 Basel, Switzerland.
- Srivastava G Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Wäckerlin C Institute of Physics (IPHYS), École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
- Dreiser J Swiss Light Source, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Decurtins S Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012 Bern, Switzerland.
- Liu SX Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012 Bern, Switzerland.
- Oppeneer PM Department of Physics and Astronomy, Uppsala University, Box 516, S-751 20 Uppsala, Sweden.
- Jung TA Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland.
- Ballav N Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, India.
- 2017-05-23
Published in:
- Nature communications. - 2017
English
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.
- Language
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- English
- Open access status
- gold
- Identifiers
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- DOI 10.1038/ncomms15388
- PMID 28530247
- Persistent URL
- https://sonar.ch/global/documents/241646
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