أعرض تسجيلة المادة بشكل مبسط

dc.creator Ferreira G. F. Leal
dc.creator Costa S. C.
dc.date 1999
dc.date.accessioned 2013-05-29T23:01:50Z
dc.date.available 2013-05-29T23:01:50Z
dc.date.issued 2013-05-30
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331999000200015
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=1999&volume=29&issue=2&spage=347
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/2597
dc.description The time dependent current in disordered systems under a step applied voltage for a planar synmetry is deduced according to the continuous time random walk approximation. Known dielectric response functions like Cole-Cole, Davidson-Cole, Havriliak-Negami and a few others are used as hopping time distribution functions in order to generate conductive responses. A theoretical relation exists between the dielectric and the conductive response which is the same one prevailing between the time derivative of the creep and the relaxation function, as found long ago by Gross (J.Appl.Phys.,18, 212, (1947)). A truncated version of the Widder method, in connection with MapleTM software facilities, was employed to obtain graphical primitives of Laplace transforms.
dc.publisher Sociedade Brasileira de Física
dc.source Brazilian Journal of Physics
dc.title Time dependent conductivity in disordered systems


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