Shu Hayama

X-ray emission spectroscopy (XES), Resonant X-ray emission spectroscopy (RXES), and Extended X-ray absorption fine structure (EXAFS) are powerful techniques used to study the local electronic and geometric structures around the absorbing atom. I have played a key role in developing the X-ray emission spectrometer for the beamline and promoted new applications of these techniques. XES can examine changes in both occupied and unoccupied electronic states, allowing us to gain valuable insights into the nature of materials across a wide range of applications.

1. The scanning four-bounce monochromator for beamline I20 at the Diamond Light Source, S. Hayama, G. Duller, J. P. Sutter, M. Amboage, R. Boada, A. Freeman, L. Keenan, B. Nutter, L. Cahill, P. Leicester, B. Kemp, N. Rubies, S. Diaz-Moreno, J. Sync. Rad. 25(5), 1556-1564 (2018).

2. "Photon-in/photon-out spectroscopy at the I20-scanning beamline at diamond light source", S. Hayama, R. Boada, J. Chaboy, A. Birt, G. Duller, L. Cahill, A. Freeman, M. Amboage, L. Keenan, S. Diaz-Moreno, J. Phys.: Condens. Matter. 33, 284003 (2021).

3. "Liquid-liquid phase separation and microscopic structure in rubidium-ammonia solutions observed using X-ray absorption spectroscopy", JC. Wasse, S. Hayama, NT. Skipper, D. Morrison, DT. Bowron, Journal of Physical Chemistry B, 107, 14452-14456 (2003)

4. "X-ray diffraction studies of solutions of lithium in ammonia: The structure of the metal-nonmetal transition", S. Hayama, NT. Skipper, JC. Wasse and H. Thompson, Journal of Chemical Physics, 116, 2991-2996 (2002)

Shu Hayama joined the I20 team in 2006 as a Beamline Scientist and is currently working as a Senior Beamline Scientist (interim PBS). Before joining Diamond, he worked as a beamline scientist at the Synchrotron Radiation Source (SRS) in the UK, where he was responsible for the maintenance and operation of Station 9.3 (Fast X-ray Absorption Spectroscopy) and Station 16.5 (Ultra-Dilute X-ray Absorption Spectroscopy). He received a PhD in Physics from the University of London, where he extensively studied the structure of liquid metal-ammonia solutions using X-ray and neutron techniques.