標題: Characterization of lead-bismuth eutectic nanowires
作者: Kuo, CG
Hsu, YY
Wu, MK
Chao, CG
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 1-Apr-2005
摘要: 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.
URI: http://dx.doi.org/10.1007/s00339-005-3205-5
http://hdl.handle.net/11536/13826
ISSN: 0947-8396
DOI: 10.1007/s00339-005-3205-5
期刊: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume: 80
Issue: 7
起始頁: 1501
結束頁: 1504
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