Superconducting anti-dot arrays from self-assembly template methods

A. A. Zhukov; E. T. Filby; M. A. Ghanem; P. N. Bartlett; P. A. J. de Groot

doi:10.1016/j.physc.2003.11.021

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Superconducting anti-dot arrays from self-assembly template methods

A. A. Zhukov·E. T. Filby·M. A. Ghanem·P. N. Bartlett·P. A. J. de Groot

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Abstract

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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A. A. Zhukov, E. T. Filby, M. A. Ghanem, P. N. Bartlett, P. A. J. de Groot. 2003-10-20. Superconducting anti-dot arrays from self-assembly template methods. https://doi.org/10.1016/j.physc.2003.11.021

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