Characterization of lead-bismuth eutectic nanowires

C. G. Kuo, Y. Y. Hsu, M. K. Wu, C. G. Chao

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Abstract

In this work, lead-bismuth eutectic alloy nanowires were fabricated by a novel vacuum melting method and centrifugal process. An anodic aluminum oxide (AAO) template was used to produce an array of ordered, dense, and continuous Pb-Bi nanowires. Scanning electron microscopy and transmission electron microscopy investigations reveal that nanowires with a diameter of 80 nm are composed of Pb7Bi3 and Bi phases, and have a single orientation of growth. Magnetic susceptibility and hysteresis measurements have been used to characterize the superconductive and magnetic properties of the nanowires. The results show that Pb-Bi nanowires have a slightly lower superconducting transition temperature than Pb-Bi eutectic alloy bulk, and only about 1% superconductivity volume fraction in magnetic fields both perpendicular and parallel to the plate. In magnetization curves, a fairly large hysteresis is observed for both field orientations.

Original languageEnglish
Pages (from-to)1501-1504
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Volume80
Issue number7
DOIs
Publication statusPublished - 2005 Apr 1

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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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