DFT calculation of 229thorium-doped magnesium fluoride for nuclear laser spectroscopy

  title={DFT calculation of 229thorium-doped magnesium fluoride for nuclear laser spectroscopy},
  author={Martin Pimon and Johannes Gugler and Peter Mohn and G A Kazakov and Norbert J. Mauser and Thorsten Schumm},
  journal={Journal of Physics: Condensed Matter},
The 229thorium nucleus has an extremely low-energy isomeric state that could be manipulated with light in the vacuum ultraviolet (VUV) range. Recent measurements based on internal conversion electrons place the isomer energy at 8.28(17) eV (Seiferle B et al 2019), within the transmission window of large-band-gap materials, such as fluoride single crystals. Doping 229Th into VUV-transparent materials realizes a spectroscopy target with a high nuclei density and might form the basis of a solid… 

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