Journal article

Future directions of μSR—laser excitation

  • Yokoyama, K. School of Physics and Astronomy, Queen Mary University of London, UK - ISIS Pulsed Muon Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, UK
  • Murahari, P. School of Physics and Astronomy, Queen Mary University of London, UK - ISIS Pulsed Muon Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, UK
  • Heathcote, P. School of Biological and Chemical Sciences, Queen Mary University of London, UK
  • Nuccio, Laura Department of Physics and FriMAT, University of Fribourg, Switzerland
  • Lord, J. S. ISIS Pulsed Muon Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, UK
  • Morley, N. A. Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK
  • Drew, Alan J. School of Physics and Astronomy, Queen Mary University of London, UK - ISIS Pulsed Muon Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, UK
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    01.12.2013
Published in:
  • Physica Scripta. - 2014, vol. 88, no. 6, p. 068511
English We discuss the general principles of laser-excited muon pump–probe spin spectroscopy (photo-μSR), including the historical origins of the technique, and discuss the overall experimental method. We review examples of past work using this technique, then discuss the future upgrade of the HiFi spectrometer with a high-power laser system. In particular, we note that performing photo-μSR experiments at high field around avoided level crossing resonances in unsaturated organic materials, offers advantages over the work previously performed at lower magnetic fields. We then present some results from some preliminary modelling of a rather simple two-electron spin system, where we see quite a complicated behaviour of the avoided level crossings. Finally, we discuss some potential applications in the biosciences, such as electron transfer in peptides and photochemistry of carotenoids, as well as magnetism which is a more traditional area for study with muons.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/303636
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