Volume 37, Number 3, January III 1997
|Page(s)||177 - 182|
|Published online||01 September 2002|
Emission of gamma rays shifted from resonant absorption by electron-nuclear double transitions in 151EU2+:CaF2
Institute of Physics and Nuclear Engineering, Heavy-Ion Physics Department, 76900
Magurele, P.O. Box MG-6, Bucharest, Romania
2 Department of Physics and Astronomy, Youngstown State University, Youngstown, Ohio 44555, USA
3 Center for Quantum Electronics, University of Texas at Dallas, P.O. Box 830688, Richardson, Texas 75083-0688, USA
Accepted: 6 December 1996
We show that the emission of a gamma-ray photon by a nucleus can be influenced by a microwave magnetic field acting on the atomic electrons. We study theoretically these electron-nuclear double transitions (ENDTs) for Eu nuclei in a lattice at low temperature, in the presence of a static magnetic field and of a microwave magnetic field. The ENDTs acquire a significant intensity for certain resonance frequencies. The ENDTs are of interest for the identification of the position of the lines in complex Mössbauer spectra.
PACS: 23.20.Lv – Gamma transitions and level energies / 76.70.Dx – Electron-nuclear double resonance (ENDOR), electron double resonance (ELDOR) / 76.80.+y – Mössbauer effect; other γ-ray spectroscopy
© EDP Sciences, 1997
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