文章基本信息

标题：Magnetic and Transport properties of Co-Cu Microwires
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作者：Valentina Zhukova ; J. J. del Val ; M. Ipatov 等
期刊名称：International Journal on Smart Sensing and Intelligent Systems
印刷版ISSN：1178-5608
出版年度：2020
卷号：7
期号：5
页码：1-6
DOI：10.21307/ijssis-2019-024
出版社：Massey University
摘要：We report on the magnetic, transport and structural properties of Cox-Cu100-x (5≤x≤40) glass-coated microwires. For x=5 we observed the resistivity minimum at 40 K associated with the Kondo effect. For x ≥ 10 we observed considerable magnetoresistance effect. Temperature dependence of susceptibility show considerable difference for x>10 and x≤ 10 attributed to the presence of small Co grains embedded in the Cu matrix for x≥ 10. Using X -ray diffraction we found, that the structure of Cox-Cu100-x microwires x ≥ 10 is granular consisting of two phases: fcc Cu appearing in all the samples and fcc α-Co presented only in microwires with higher Co content.
其他关键词：magnetic microwires; GMR effect; internal stresses; Kondo effect