Browsing by Author "Le Touze, C."

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Magnetoresistance and percolation in Au-p-(PrBa2Cu3O7)(1-p) composites
(2006-10-18)
Le Touze, C.
;
Lin, J. J.
;
電子物理學系
;
物理研究所
;
Department of Electrophysics
We examine the transverse magnetoresistance of three-dimensional bicomponent composites Au-p-(PrBa2Cu3O7)(1-p). This property, seldom measured on percolation systems, has been measured below 5 K and up to 1.5 T. Contrarily to well known transport properties, the magnetoresistance of these compounds exhibits a metal volume fraction's threshold pc linked to the onset of disorder rather than to percolation.