Mössbauer time spectra of the nuclear forward scattering from coherently vibrating resonant nuclei

The time evolution of the nuclear forward scattering from an antiferromagnetic 57 FeBO 3 single crystal exposed to an RF magnetic field synchronized with synchrotron radiation was investigated. The resonant nuclei were coherently vibrated by the RF magnetic field in a crystal. In the measured time spectra, intensity enhancement appeared when the initial magnetization state of the crystal was restored. The measured time spectra were analyzed by applying the multiple nuclear resonant absorption theory to the system of vibrating nuclei.