Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3701283
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Funding
- Chinese Academy of Sciences
- National Natural Science Foundation of China [91123004, 11104334, 50825206, 10834012, 60801043]
- National Basic Research Program (973) of China [2009CB930502]
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Free-space nanostructures are the fundamental building blocks of three-dimensional (3D) nanodevices with multi-functionality beyond that achievable by planar devices. Here we developed a reliable technique for the site-specific post-growth geometrical manipulation of freestanding superconducting nanowires using ion-beam irradiation with nanometer-scale resolution to fabricate uniformly shaped and sized clean-surface 3D nanostructures. Such structures could integrate with conventional superconducting quantum interference devices to detect magnetic fields both parallel and normal to the substrate. Property characterizations suggest that our focused-ion-beam technique allows tailoring of freestanding superconducting loops for size and geometry, potentially for lab-on-chip experiments. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3701283]
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