The beamlines within the group continue to develop through a number of upgrade projects, both major and minor. VERSOX (B07) is in the process of bringing its second branch online, which will enable high throughput X-ray Photoelectron Spectroscopy (XPS) measurements on multiple samples and Near-edge Extended X-ray Absorption Fine Structure (NEXAFS) in a non-UHV environment. Together with the Near Ambient Pressure XPS experiments on the existing branch, this provides excellent opportunities to study the electronic and structural properties of different samples of relevance to a range of science areas including atmospheric chemistry, pharmaceuticals, catalysts or cultural heritage amongst others. Beamline I09 is adding new capabilities to its end station provision; a HAXPES system to enable studies of the electronic states of buried interfaces and a momentum microscope to produce images of the electron band structure directly in momentum space. Beamline I05 has two branches, one of which is the high resolution facility that has proven to be a very successful addition to the suite of beamlines, since it became operational in 2014. Many experiments make use of the in situ cleaving techniques to study novel crystal structures, whilst there is also a fully equipped molecular beam epitaxy (MBE) system attached to the end-station that can be used to produce samples in situ, as demonstrated by the successful growth of Gadolinium doped europium oxide (EuO) thin film structures. The Nano-ARPES branch has been attracting an increasing number of users that want to understand not only the electronic structure on a macroscopic scale but also to establish the real space distribution of those states. This is now possible with sub-micron resolution on the branchline and changes in the focussing optics aim to improve the resolution to less than 500 nm. Beamline I07 has been in a period of stable operation for the last few years; it is now in the process of upgrading its monochromator to a Diamond designed system. This will increase the stability of the photon beam, the first stage in improving the focusing optics to reduce the beam dimensions to a planned size of ~10 μm. Plans are also underway to upgrade the sample environments, in particular the UHV system for in situ MBE studies.
Diamond Light Source is the UK's national synchrotron science facility, located at the Harwell Science and Innovation Campus in Oxfordshire.
Copyright © 2020 Diamond Light Source
Diamond Light Source Ltd
Harwell Science & Innovation Campus
Diamond Light Source® and the Diamond logo are registered trademarks of Diamond Light Source Ltd