Imprinting nanoporous alumina patterns into the magneto-transport of oxide superconductors

Details Imprinting nanoporous alumina patterns into the magneto-transport of oxide superconductors Imprinting nanoporous alumina patterns into the magneto-transport of oxide superconductors

2011-01-17

arxiv.org/abs/1101.3172v1

Nanotechnology 22, 075302 (2011)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1088/0957-4484/22/7/075302

We used oxygen ion irradiation to transfer the nanoscale pattern of a porous alumina mask into high- superconducting thin films. This causes a nanoscale spatial modulation of superconductivity and strongly affects the magneto-transport below, which shows a series of periodic oscillations reminiscent of the Little-Parks effect in superconducting wire networks. This irradiation technique could be extended to other oxide materials in order to induce ordered nanoscale phase segregation.

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