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| Bi系高温氧化物超导体CuO2面内Cu-O键伸缩振动的分析 | |
| 引用本文： | 胥荣,汤宏,李村涓,鲜于泽. Bi系高温氧化物超导体CuO2面内Cu-O键伸缩振动的分析[J]. 光谱学与光谱分析, 1999, 19(1): 44-46 |
| 作者姓名： | 胥荣 汤宏 李村涓 鲜于泽 |
| 作者单位： | 1. 辽宁大学物理系,110036,沈阳 2. 中国科学院金属所,110015,沈阳 3. 东北大学物理系,110006,沈阳 |
| 摘 要： | 测试了一系列Ｂｉ系高温氧化物超导体的红外吸收谱，分析了Ｂｉ系超导样品ＣｕＯ２面内Ｃｕ－Ｏ键的伸缩振动与样品超电性的联系。结果表明，ＣｕＯ２面内Ｃｕ－Ｏ伸缩振动吸收峰强度的变化与样品零电阻的变化一致，其原因与微观结构内部声子与载流子的相互作用密切相关。其次，根据分子振动理论，采用简化模型计算了Ｂｉ系超导体ＣｕＯ２面内Ｃｕ－Ｏ振支频率 |
| 关 键 词： | Bi系超导体 红外吸收谱 Cu-O键伸缩振动 |
Analysis of Cu-O Bond Stretching Vibration in CuO2 Plane of Bi-System High Temperature Superconductor |
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| Rong XU,Hong TANG,Cunjuan LI,Yuze XIAN. Analysis of Cu-O Bond Stretching Vibration in CuO2 Plane of Bi-System High Temperature Superconductor[J]. Spectroscopy and Spectral Analysis, 1999, 19(1): 44-46 | |
| Authors: | Rong XU Hong TANG Cunjuan LI Yuze XIAN |
| Affiliation: | Department of Physics, Liaoning University, 110036 Shenyang. |
| Abstract: | Infrared absorption spectra of Bi system high zero resistance temperature( T c ) superconductors were measured.The relation between Cu O bond stretching vibration in CuO 2 plane and superconducting properties of Bi system high T c superconductors were analysed and discussed.The result of analysis indicated that the change of absorption peak strength of Cu O bond stretching vibration was similar to the change of T c .The reason was related to the coupling between the phonon and free carrier.And according to the theory of molecule vibration,the frequencies of Cu O bond stretching vibration in CuO 2 plane were calculated on the base of simplified model. |
| Keywords: | Bi system superconductor Infrared absorption spectrum Cu O bond stretching vibration |
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