Nuclear Bragg Diffraction of Synchrotron Radiation in the Presence of Acoustic Vibrations

Autor:	T. Hertrich, J. Metge, Yu. V. Shvyd'ko, H. D. Rüter, Olaf Leupold, G. V. Smirnov, U. van Bürck, E. Gerdau, V. G. Kohn, A. I. Chumakov
Rok vydání:	1993
Předmět:	Diffraction Materials science business.industry Time evolution General Physics and Astronomy Bragg's law Synchrotron radiation Optics Excited state Time domain Atomic physics Spectroscopy business Excitation
Zdroj:	Europhysics Letters (EPL). 22:305-310
ISSN:	1286-4854 0295-5075
DOI:	10.1209/0295-5075/22/4/011
Popis:	The time evolution of nuclear Bragg diffraction of 14.4 keV synchrotron radiation in a 57FeBO3 crystal was studied when the crystal was excited to magnetoelastic vibrations by a r.f. field of 2.93 MHz. The vibrations did not modify the time evolution of the diffraction. This result is due to the fact that after the excitation by the SR pulse the nuclear vibrations cause only a phase modulation of the re-emitted radiation. Energy spectra, by contrast, are extremely sensitive to vibrations. Thus the present case is an instructive example of complementarity between energy and time domain Mossbauer spectroscopy. Time domain spectroscopy, in particular, will allow to reveal phenomena, which are blurred in the energy spectra by vibrations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4c0e6d5ebd4c1c96fbd7634a1b502109 https://doi.org/10.1209/0295-5075/22/4/011 Zobrazit plný text záznamu