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Anharmonicity and its significance to non-Ohmic electric conduction



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Makarov, Valeri A. y Velarde, Manuel G. y Chetverikov, Alexander y Ebeling, Werner (2006) Anharmonicity and its significance to non-Ohmic electric conduction. Physical Review E , 73 (6). ISSN 1539-3755

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URL Oficial: http://pre.aps.org/abstract/PRE/v73/i6/e066626

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We provide here a thorough analysis of the interplay between anharmonic lattice dynamics (with exponential repulsion between units) and electric conduction in a driven-dissipative electrically charged one-dimensional system. First, we delineate the ranges of parameter values where, respectively, subsonic and supersonic wave solitons are possible along the lattice. Then, we study the consequences of the soliton-mediated coupling of light negative to heavy positive charges (lattice units). In the presence of an external electric field we obtain the current-field characteristics for a wide range of values of all parameters defining the system. Finally, we discuss the conditions for an Ohmic-non-Ohmic transition of the electric current as the electric field strength is varied.

Tipo de documento:Artículo
Palabras clave:High-density; Dissipative solitons; Toda-lattices; Oscillations; Excitations; Transport; Proteins; Polymers; Currents; Helium
Materias:Ciencias Biomédicas > Biología > Biomatemáticas
Código ID:16774
Depositado:19 Oct 2012 08:13
Última Modificación:27 Jun 2016 15:03

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