Using neutron spin echo to probe space and time correlations in thin films

Abstract

I discuss the possibility of making minor modifications to existing neutron spin echo (NSE) spectrometers to enable the measurement of both the space and time dependence of density fluctuations in thin films mounted on planar substrates. The modifications consist primarily of adding four additional π flippers.

Keywords:

• Neutron spin echo
• Thin films
• Density fluctuation
• Planar substrates

Acknowledgements

I am grateful to Ferenc Mezei for discussions about this work and to the Office of Basic Energy Sciences, part of the US Department of Energy, for funding this work under contract number W-7405-ENG-36 with the University of California.