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Current issue   Ukr. J. Phys. 2014, Vol. 58, N 7, p.646-656


Archilla J.F.R.1, Kosevich Y.A.2, Jiménez N.3, Sánchez-Morcillo V.J.3, Garsía-Raffi L.M.4

1 Grupo de F´ısica No Lineal. Universidad de Sevilla. Departamento de F´ısica,
Aplicada I. ETSI Inform´atica,
(Avda. Reina Mercedes, s/n. 41012-Sevilla, Spain; e-mail: archilla@us.es)
2 Semenov Institute of Chemical Physics, Russian Academy of Sciences
(Ul. Kosygina 4, 119991 Moscow, Russia)
3 Instituto de Investigaci´on para la Gesti´on, Integrada de las Zonas Costeras,
Universidad Polit´ecnica de Valencia,
(C/.Paranimfo 1, 46730 Grao de Gandia, Spain)
4 Instituto de Universitario Matem´atica Pura y Aplicada, Universidad Polit´ecnica de Valencia
(Camino de Vera s/n, 46022 Valencia, Spain)

Moving Excitations in Cation Lattices

Section: Solid matter
Original Author's Text: English

Abstract: We consider a model made out of identical particles that repel each other with the Coulomb interaction. We study numerically and analytically the existence and properties of supersonic kinks, showing that they are very easy to be produced and propagate long distances. They have a wide range of velocities and energies. We are motivated by a special characteristic of the muscovite mica mineral. Tracks from particles such as muons can be distinguished in a complex decoration, but the only explanation to most of the tracks is localized excitations called quodons. They move in the cation lattice, sandwiched between the silicate layers, along the lattice directions. Quodons have also been observed experimentally [EPL 78 (2007) 1005].

Key words: excitations, quodons, cation lattices, Coulomb interaction.