Superconducting anti-dot arrays from self-assembly template methods

Details Superconducting anti-dot arrays from self-assembly template methods Superconducting anti-dot arrays from self-assembly template methods

2003-10-20

arxiv.org/abs/cond-mat/0310459v1

Physics

Condensed Matter

Superconductivity

12 pages, 6 figures

Scientific paper

10.1016/j.physc.2003.11.021

We present results of electrochemical deposition of superconducting Pb in the pores of templates prepared by self-assembly from colloidal suspensions of polystyrene latex spheres. This technique enables us to create highly ordered superconducting nano-structures with 3D architectures on length scales ranging from 50 - 1000 nm. The prepared samples show pronounced Little-Parks oscillations in Tc and matching effects in magnetization and magnetic susceptibility. Real and imaginary parts of susceptibility follow a universal Cole-Cole curve. Self-field effects play an important role in commensurability behaviour of magnetic moment at low temperatures.

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