Influence of the soliton in anharmonic molecular crystals with temperature on Mössbauer effect
Institute of High-Energy Physics, University of Electronic Science
and Technology of China, Chengdu
610054, P.R. China
Department of Physics, Kaiserslautern University, 67663 Kaiserslautern,
International Centre for Material Physics, Academia Sinica, Shenyang
110015, P.R. China
Institute of Atom. and Mol. Physics, Sichuan University, Chengdu 610015, P.R.
Corresponding author: a email@example.com
Revised: 11 December 1998
Published online: 15 August 1999
The influence of a soliton on the properties of the Mössbauer effect resulting from the gamma-active nuclei situated at lattice sites in quasi-one-dimensional anharmonically organic molecular chains, in which the active nuclei emit gamma-photons, has been theoretically studied by a quantum vibrational model. An expression for the gamma-radiated Mössbauer transition probability as a function of the temperature and non-linear interaction has been obtained. Finally we give some new properties of this effect from numerical calculation in such a case, which present a way to experimentally confirm the soliton existence in molecular crystals.
PACS: 76.80.+y – Mössbauer effect; other γ-ray spectroscopy / 33.40.+f – Multiple resonances (including double and higher-order resonance processes, such as double nuclear magnetic resonance, electron double resonance, and microwave optical double resonance) / 71.38.+i – Polarons and electron-phonon interactions
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999