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

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 Commun

journal_title

Nature communications

authors

Moreno Pineda E,Chilton NF,Marx R,Dörfel M,Sells DO,Neugebauer P,Jiang SD,Collison D,van Slageren J,McInnes EJ,Winpenny RE

doi

10.1038/ncomms6243

subject

Has Abstract

pub_date

2014-10-13 00:00:00

pages

5243

issn

2041-1723

pii

ncomms6243

journal_volume

5

pub_type

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