高Tc超导体YBa_2Cu_3O_x中铜的价态研究  

ON THE VALENCE STATE OF COPPER IN HIGH Tc YBa_2 Cu_3O_x SUPERCONDUCTOR

作　　者：宋增福[1,2] 张丽珠[1,2] 刘文天[1,2] 吴瑾光 徐光宪[1,2] 王加赋 刘会洲[1,2] 黄竹坡 雷子明 潘广炎 刘家瑞[1,2] 蔡继业 郭海 王彦吉[1,2] 廖华 丁晓春 习宁 郑朝贵 翁诗甫[1,2] 许振华 周维金 施鼐 徐瑞夫[1,2] 

机构地区：[1]北京大学化学系 [2]北京大学物理系

出　　处：《中国稀土学报》1989年第4期1-5,共5页Journal of the Chinese Society of Rare Earths

摘　　要：应用多种光致发光光谱技术测定了高Tc超导体YBa_2Cu_3O_x的荧光光谱,对谱带的比较研究和指认表明,在这种样品中同时存在着Cu^+、Cu^(2+)和Cu^(3+)。The optical luminescence spectra of high Tc YBa_2Cu_3O_x were measured by using super-high pressure Xe-lamp, Ar^+ Laser, He-Ne laser, X-ray and H_2^+ beam as excited sources. The emission bands demonstrated that Cu^+, Cu^(2+) and Cu^(3+) exist simultaneously in YBa_2Cu_3O_x high Tc superconductor. Various optical luminescence spectroscopy and H_2^+ beam spectroscopy have proved to be successful techniques for the study of the valence state of high Tc superconducting materials.

关 键 词：超导体 Tc YBA2CU3OX 铜 价态 钇 

分 类 号：TM262[一般工业技术—材料科学与工程]