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Published November 2008 | Supplemental Material
Journal Article Open

Long, Highly-Ordered High-Temperature Superconductor Nanowire Arrays


The preparation and electrical properties of high-temperature superconductor nanowire arrays are reported for the first time. YBa2Cu3O7−δ nanowires with widths as small as 10 nm (much smaller than the magnetic penetration depth) and lengths up to 200 μm are studied by four-point electrical measurements. All nanowires exhibit a superconducting transition above liquid nitrogen temperature and a transition temperature width that depends strongly upon the nanowire dimensions. Nanowire size effects are systematically studied, and the results are modeled satisfactorily using phase-slip theories that generate reasonable parameters. These nanowires can function as superconducting nanoelectronic components over much wider temperature ranges as compared to conventional superconductor nanowires.

Additional Information

© 2008 American Chemical Society. Received July 26, 2008; Revised Manuscript Received October 2, 2008. Publication Date (Web): October 28, 2008. We thank Yue Zou for helpful discussions. This work was supported by the Department of Energy (DE-FG02-04ER46175).

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Supplemental Material - XUKnl08supp.pdf


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