Analysis of Drude model using fractional derivatives without singular kernels

Autor: Jiménez Leonardo Martínez, García J. Juan Rosales, Contreras Abraham Ortega, Baleanu Dumitru
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Open Physics, Vol 15, Iss 1, Pp 627-636 (2017)
Druh dokumentu: article
ISSN: 2391-5471
DOI: 10.1515/phys-2017-0073
Popis: We report study exploring the fractional Drude model in the time domain, using fractional derivatives without singular kernels, Caputo-Fabrizio (CF), and fractional derivatives with a stretched Mittag-Leffler function. It is shown that the velocity and current density of electrons moving through a metal depend on both the time and the fractional order 0 < γ ≤ 1. Due to non-singular fractional kernels, it is possible to consider complete memory effects in the model, which appear neither in the ordinary model, nor in the fractional Drude model with Caputo fractional derivative. A comparison is also made between these two representations of the fractional derivatives, resulting a considered difference when γ < 0.8.
Databáze: Directory of Open Access Journals