Abstract
Magnetization curves well belowTc of a lead nanowire array electrodeposited under pulsed voltage conditions areconsidered. Numerical simulations based on a two-dimensional resolution (2Dmodel) of the Ginzburg–Landau (GL) equations for cylindrical configurationshave also been developed. By freely adjusting the GL phenomenological lengthsλ(T) and ξ(T), the experimental magnetization curves are reproduced to within a 10% error margin. The 2Dmodel also allows us to check the cylindrical symmetry of the obtained configurations. Beyond theexperimental–theoretical agreement, the question of whether the GL model remains valid far belowTc is also addressed. The temperature dependence of the adjusted characteristic lengths iscompared with different theoretical and empirical laws. The most satisfactory agreement isachieved for the Gorter–Casimir two-fluid model. A comparison with a lead nanowire arrayelectrodeposited under constant voltage conditions allows us to distinguish both samples interms of their electronic mean free paths. The characterization of the latter quantitiesconcurs perfectly with the experimental expectation given the different electrodepositiontechniques.
Published Version
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