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arXiv 0911.4524cond-mat.supr-concond-mat.mtrl-sci
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YBaCuO材料在109 K的可能超导电性

The possible superconductivity at 109 K in YBaCuO materials

P. Udomsamuthirun, T. Kruaehong, T. Nilkamjon, S. Ratreng

摘要:

采用标准固相反应法合成了YBaCuO超导体Y 5 -6-11、Y 7 -9-16、Y 5 -8-13、Y 7 -11-18、Y156、Y3-8-11和Y13-20-23。我们发现所有材料在77 K时都表现出迈斯纳效应。电阻率测量采用四探针法,Y 7-11-18的起始电阻率最高,为109 K。X射线衍射谱表明,它们具有与Y123相同的晶体结构,但有一些杂质峰。

英文摘要:

The new YBaCuO superconductors are synthesized by using the standard solid state reaction method as Y5-6-11, Y7-9-16, Y5-8-13, Y7-11-18, Y156, Y3-8-11, and Y13-20-23. We find that all material obtained are shown the Meissner effect at 77 K. The resistivity measurements are used by the four-probe method .The Y 7-11-18 has the highest onset as 109 K . The XRD spectra are shown that they have the same crystal structure as Y123 with some impurities peaks .

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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