Direct measurement of dysprosium(III)˙˙˙dysprosium(III) interactions in a single-molecule magnet

Eufemio Moreno Pineda, Nicholas F Chilton, Raphael Marx, Maria Dorfel, Daniel O Sells, Petr Neugebauer, Shang-Da Jiang, David Collison, Joris van Slageren, Eric Mcinnes, Richard EP Winpenny

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Lanthanide compounds show much higher energy barriers to magnetic relaxation than 3d-block compounds, and this has led to speculation that they could be used in molecular spintronic devices. Prototype molecular spin valves and molecular transistors have been reported, with remarkable experiments showing the influence of nuclear hyperfine coupling on transport properties. Modelling magnetic data measured on lanthanides is always complicated due to the strong spin-orbit coupling and subtle crystal field effects observed for the 4f-ions; this problem becomes still more challenging when interactions between lanthanide ions are also important. Such interactions have been shown to hinder and enhance magnetic relaxation in different examples, hence understanding their nature is vital. Here we are able to measure directly the interaction between two dysprosium(III) ions through multi-frequency electron paramagnetic resonance spectroscopy and other techniques, and explain how this influences the dynamic magnetic behaviour of the system.
    Original languageEnglish
    Pages (from-to)5243-5243
    Number of pages1
    JournalNature Communications
    Volume5
    DOIs
    Publication statusPublished - Oct 2014

    Keywords

    • Chemical sciences
    • Inorganic chemistry
    • Nanotechnology

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