Single-molecule magnets (SMMs) show magnetic memory on the nanoscale and therefore are promising candidates for ultra-high-density information storage. We have pioneered approaches in maximising the magnetic remanence of Dy SMMs, including the discovery that by control of the coordination environment of a Dy ion, magnetisation can be retained to 60 K (Goodwin et. al., Nature, 2017, 548, 439). Whilst efforts to increase the performance of SMMs continue, to fully exploit their molecular-scale the structural and magnetic robustness of these materials must be explored in non-crystalline environments. It is known that the magnetic properties of high-performance SMMs crucially depend on their structure, however there have been no studies that measure the changes that occur when they are extracted from their native crystalline state and deposited on surfaces, in amorphous phases or as dopants within diamagnetic host lattices.
This project coincides with the upgrade of the X-ray emission spectrometer at I20-Scanning providing new opportunities to study Dy SMMs at lower concentrations, such as on surfaces and as dopants, with resonant inelastic X-ray scattering. Complementary magnetic measurements will be performed at I10-BLADE using X-ray magnetic circular dichroism.
It is expected that the use of Diamond Light Source beamlines I20-Scanning and I10-BLADE to measure the magnetic properties and local geometric structure of SMMs in non-crystalline arrays, will provide important insight into how ultra-high-density magnetic data storage should be constructed at the nanoscale.
Huzan et. al., Chem. Sci., 2020, 11, 11801.
Goodwin et. al., Nature, 2017, 548, 439.
Applications are now open.
For more information, the project is also listed on:
If interested, you can contact the University Supervisor, Michael Baker, if you would like to discuss the project and application process. You will need to apply via the University portal.
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