Eur. Phys. J. B 10, 415-428 (1999)
https://doi.org/10.1007/s100510050871

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, Germany International Centre for Material Physics, Academia Sinica, Shenyang 110015, P.R. China Institute of Atom. and Mol. Physics, Sichuan University, Chengdu 610015, P.R. China

Corresponding author: ^a pangxf@mail.sc.cninfo.net

Received: 9 April 1998
Revised: 11 December 1998
Published online: 15 August 1999

Abstract

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.