Quasi one-dimensional superconductors on porous silicon templates

Abstract

The use of porous silicon in the field of superconducting nanoelectronics is considered. The attention focuses on the influence of the morphology of the pores (porosity, average pore diameter) on the superconducting properties of ultrathin films deposited on these templates. It's shown that within this fabrication procedure we can obtain networks of one-dimensional superconducting nanowires, which exhibit features typical of Quantum Phase Slip (QPS) phenomena. This creates preconditions for the development and implementation of new highly-sensitive radiation detectors, magnetometers, QPS qubits, QPS transistors and quantum current standards.

Keywords

• porous silicon templates
• ultrathin superconducting film
• nanowire network
• thermal fluctuations
• quantum tunneling