Photoinduced superconducting nanowires in Gd-Ba-Cu-O films

R. S. Decca; H. D. Drew; B. Maiorov; J. Guimpel; E. Osquiguil

doi:10.1063/1.121787

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Photoinduced superconducting nanowires in Gd-Ba-Cu-O films

R. S. Decca·H. D. Drew·B. Maiorov·J. Guimpel·E. Osquiguil

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Abstract

We report the fabrication of high Tc superconducting wires by photodoping a GdBa2Cu3O{6.5} thin film. An optical near-field probe was used to locally excite carriers in the system at room temperature. Trapping of the photogenerated electrons define a confining potential for the conducting holes in the CuO planes. Spatially resolved reflectance measurements show the photogenerated nanowires to be ~ 250 nm wide. Electron diffusion, before electron capture, is believed to be responsible for the observed width of the wires.

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R. S. Decca, H. D. Drew, B. Maiorov, J. Guimpel, E. Osquiguil. 1998-03-04. Photoinduced superconducting nanowires in Gd-Ba-Cu-O films. https://doi.org/10.1063/1.121787

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