Proceedings of the Conference on Nonlinear Coherent Structures in Physics and Biology,
Heriot-Watt University, Edinburgh, July 95

Evidence for Energetic Anharmonic Lattice Excitations and Practical Applications

F.M. Russell

Rutherford Appleton Laboratory
Chilton, OX11 0QX, U.K.


Numerical and analogue studies have been made of lattice solitons created in crystals by nuclear scattering of energetic particles. On-site potentials exclude topological solitons but allow 'optical' type. Direct evidence for these solitons is given by low energy sputtering from crystal surfaces. These solitons can have energies in the range from <1eV to >50eV. Energetic solitons are remarkably stable against random defects in the lattice and show self-focussing properties. They have potential for practical applications. In polarisable materials interaction will occur between these solitons and electrons. It has been shown that these solitons can propagate in typical high Tc superconductivity materials. Evidence is given which supports their involvement in HTSC.

Conference paper.


Last modified Mon Apr 8 16:25:01 GB-Eire 1996 (DBD)