Rayleigh Scattering of Mössbauer Radiation Method Used in Dynamics Studies of Condensed Matter

• Authors: S. Enescu , I. Bibicu
• Languages of publication: EN

Abstracts

EN

The Rayleigh scatte ring of the Mössbauer radiation is a less common technique used in the study of the properties of condensed matter. The detection of the scattered radiation via the nuclear resonance absorption, with an energy resolution of the order of 10^{-8} eV makes this technique very sensitive to dynamics changes. The results of our studies by the Rayleigh scattering of the Mössbauer radiation on pyrolytic graphite (C) and rubidium tetrachlorozincate (Rb_2ZnCl_4) are reported. The contribution of the coherent inelastic scattering to the total intensity in C(002) is presented like a consequence of the coupling motions of C atoms in the hexagonal plane. The normal-incommensurate phase transition in Rb_2ZnCl_4 is discussed in connection with the photon-phonon interaction.

Keywords

EN

33.45.+x; 64.60.-i; 64.70.Rh

Discipline

• 64.60.-i: General studies of phase transitions(see also 63.70.+h Statistical mechanics of lattice vibrations and displacive phase transitions; for critical phenomena in solid surfaces and interfaces, and in magnetism, see 68.35.Rh, and 75.40.-s, respectively)
• 64.70.Rh: Commensurate-incommensurate transitions
• 33.45.+x: Mössbauer spectra(see also 76.80.+y Mössbauer effect; other γ-ray spectroscopy in condensed matter; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 107
• Issue: 3
• Pages: 479-489

Dates

published

2005-03

received

2004-11-02

Contributors

author

S. Enescu

• "Horia Hulubei" National Institute for Physics and Nuclear Engineering IFIN-HH, P.O. Box MG-6, 76900 Bucharest-Magurele, Romania

author

I. Bibicu

• National Institute for Material Physics, P.O. Box MG-6, 76900 Bucharest-Magurele, Romania

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Identifiers

DOI

10.12693/APhysPolA.107.479