KOPS - The Institutional Repository of the University of Konstanz

Bulk-Like Magnetic Signature of Individual Fe<sub>4</sub>H Molecular Magnets on Graphene

Bulk-Like Magnetic Signature of Individual Fe4H Molecular Magnets on Graphene

Cite This

Files in this item

Files Size Format View

There are no files associated with this item.

PASCHKE, Fabian, Philipp ERLER, Vivien ENENKEL, Luca GRAGNANIELLO, Mikhail FONIN, 2019. Bulk-Like Magnetic Signature of Individual Fe4H Molecular Magnets on Graphene. In: ACS Nano. 13(1), pp. 780-785. ISSN 1936-0851. eISSN 1936-086X. Available under: doi: 10.1021/acsnano.8b08184

@article{Paschke2019-01-22BulkL-44559, title={Bulk-Like Magnetic Signature of Individual Fe4H Molecular Magnets on Graphene}, year={2019}, doi={10.1021/acsnano.8b08184}, number={1}, volume={13}, issn={1936-0851}, journal={ACS Nano}, pages={780--785}, author={Paschke, Fabian and Erler, Philipp and Enenkel, Vivien and Gragnaniello, Luca and Fonin, Mikhail} }

Single-molecule magnets (SMMs) incorporate key properties that make them promising candidates for the emerging field of spintronics. The challenge to realize ordered SMM arrangements on surfaces and at the same time to preserve the magnetic properties upon interaction with the environment is a crucial point on the way to applications. Here we employ inelastic electron tunneling spectroscopy (IETS) to address the magnetic properties in single Fe<sub>4</sub> complexes that are adsorbed in a highly ordered arrangement on graphene/Ir(111). We are able to substantially reduce the influence of both the tunneling tip and the adsorption environment on the Fe<sub>4</sub> complex during the measurements by using appropriate tunneling parameters in combination with the flat-lying Fe<sub>4</sub>H derivative and a weakly interacting surface. This allows us to perform noninvasive IETS studies on these bulky molecules. From the measurements we identify intermultiplet spin transitions and determine the intramolecular magnetic exchange interaction constant on a large number of molecules. Although a considerable scattering of the exchange constant values is observed, the distribution maximum is located at a value that coincides with that of the bulk. Our findings confirm a retained molecular magnetism of the Fe<sub>4</sub>H complex at the local scale and evaluate the influence of the environment on the magnetic exchange interaction. Gragnaniello, Luca Enenkel, Vivien 2019-01-15T07:13:32Z 2019-01-15T07:13:32Z Enenkel, Vivien Fonin, Mikhail Gragnaniello, Luca Fonin, Mikhail eng Erler, Philipp Bulk-Like Magnetic Signature of Individual Fe<sub>4</sub>H Molecular Magnets on Graphene Paschke, Fabian Paschke, Fabian 2019-01-22 Erler, Philipp

This item appears in the following Collection(s)

Search KOPS


Browse

My Account