. . "The M\u00F6ssbauer effect, or recoilless nuclear resonance fluorescence, is a physical phenomenon discovered by Rudolf M\u00F6ssbauer in 1958. It involves the resonant and recoil-free emission and absorption of gamma radiation by atomic nuclei bound in a solid. Its main application is in M\u00F6ssbauer spectroscopy.In the M\u00F6ssbauer effect the narrow resonance absorption for nuclear gamma absorption can be successfully attained by physically immobilizing atomic nuclei in a crystal."@en .