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.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Moreno Pineda E,Chilton NF,Marx R,Dörfel M,Sells DO,Neugebauer P,Jiang SD,Collison D,van Slageren J,McInnes EJ,Winpenny REdoi
10.1038/ncomms6243subject
Has Abstractpub_date
2014-10-13 00:00:00pages
5243issn
2041-1723pii
ncomms6243journal_volume
5pub_type
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