Volume 78, Number 1, April 2007
|Number of page(s)||5|
|Published online||13 March 2007|
Evidence for moving breathers in a layered crystal insulator at 300 K
Department of Mathematics and the Maxwell Institute for Mathematical Sciences, Heriot-Watt University - Riccarton, Edinburgh, EH14 4AS, UK
Accepted: 12 February 2007
We report the ejection of atoms at a crystal surface caused by energetic breathers which have travelled more than 107 unit cells in atomic chain directions. The breathers were created by bombardment of a crystal face with heavy ions. This effect was observed at 300 K in the layered crystal muscovite, which has linear chains of atoms for which the surrounding lattice has C2 symmetry. The experimental techniques described could be used to study breathers in other materials and configurations.
PACS: 05.45.Yv – Solitons / 43.25.+y – Nonlinear acoustics / 61.80.Lj – Atom and molecule irradiation effects
© Europhysics Letters Association, 2007
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