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利用红外光谱估测YBa₂Cu₃O_x的氧含量晶体结构和超导性能的研究

STUDIES OF EVALUATING THE OXYGEN CONTENT CRYSTAL STRUCTURE AND SUPERCONDUCTING PROPERTIES OF YBa₂ Cu₃ O_x BY IR SPECTRA

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【Author】 Cai Peixing Zhao Yonggang Chen JianmingGu Weifang Shi Tiansheng (Shanghai Institute of Metallurgy, Academia Sinica)

【机构】中国科学院上海治金研究所；中国科学院上海治金研究所；

【摘要】本文介绍利用YBa₂Cu₃O_x红外光谱中对应于准局域的Cu—O键伸缩振动的吸收峰(615—642cm^-1)频率的变化与氧含量、晶体结构和超导性能之间的对应关系,估测YBa₂Cu₃O_x中氧含量、晶体结构和超导性能的方便方法。实验验证的初步结果表明这个方法是方便而有效的。更多还原

【Abstract】 Based upon the relationship between the frequency shift of the IR peak (615-642cm-1 caused by quasi-localized Cu-O stretching vibration mode in YBa2Cu3Ox and the oxygen content,crystal structure and superconducting properies of YBa2Cu3Ox, a simple and convenient method is proposed for their evaluation by IR spectra. Its validity has been tested experimently.更多还原