Oxygen isotope effect in the ab-plane reflectance of underdoped YBa2Cu3O7-delta
文献类型：期刊论文
| 作者 | Wang, NL ; Timusk, T ; Franck, JP ; Schweiss, P ; Braden, M ; Erb, A |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2002 |
| 卷号 | 89期号:8 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS LATTICE-DYNAMICS ENERGY SCALE PHONON PSEUDOGAP BI2SR2CACU2O8+DELTA DEPENDENCE YBA2CU4O8 STATE GAP |
| ISSN号 | 0031-9007 |
| 通讯作者 | Wang, NL (reprint author), Chinese Acad Sci, Inst Phys, POB 2711, Beijing 100080, Peoples R China. |
| 中文摘要 | We have measured the effect of oxygen isotope substitution on the ab-plane reflectance of underdoped YBa2Cu3O7-delta. The frequency shift of the transverse optic phonons due to the substitution of O-16 by O-18 yields an isotope effect of the expected magnitude for copper-oxygen stretching modes with alpha=0.5+/-0.1. The reflectance shoulder at 400-500 cm(-1) shows a much smaller exponent of alpha=0.1+/-0.1 in the normal state and alpha=0.23+/-0.1 in the superconducting state. These observations suggest that the shoulder is of electronic origin and not due to a phonon mode as has been suggested recently. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50542]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, NL,Timusk, T,Franck, JP,et al. Oxygen isotope effect in the ab-plane reflectance of underdoped YBa2Cu3O7-delta[J]. PHYSICAL REVIEW LETTERS,2002,89(8). |
| APA | Wang, NL,Timusk, T,Franck, JP,Schweiss, P,Braden, M,&Erb, A.(2002).Oxygen isotope effect in the ab-plane reflectance of underdoped YBa2Cu3O7-delta.PHYSICAL REVIEW LETTERS,89(8). |
| MLA | Wang, NL,et al."Oxygen isotope effect in the ab-plane reflectance of underdoped YBa2Cu3O7-delta".PHYSICAL REVIEW LETTERS 89.8(2002). |
入库方式： OAI收割
来源：物理研究所
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