Three-dimensionality of band structure and a large residual quasiparticle population in Ba0.67K0.33Fe2As2 as revealed by c-axis polarized optical measurements
文献类型：期刊论文
| 作者 | Cheng, B ; Chen, ZG ; Zhang, CL ; Ruan, RH ; Dong, T ; Hu, BF ; Guo, WT ; Miao, SS ; Zheng, P ; Luo, JL ; Xu, G ; Dai, PC ; Wang, NL |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 83期号:14 |
| 关键词 | CHARGE DYNAMICS CUO2 PLANES LA2-XSRXCUO4 REFLECTIVITY SPECTRA |
| ISSN号 | 1098-0121 |
| 通讯作者 | Cheng, B (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We report on a c-axis polarized optical measurement on a Ba0.67K0.33Fe2As2 single crystal. We find that the c-axis optical response is significantly different from that of high-T-c cuprates. The experiments reveal an anisotropic three-dimensional (3D) optical response with the absence of the Josephson plasma edge in R(omega) in the superconducting state. Furthermore, different from the ab-plane optical response, a large residual quasiparticle population down to T similar to 1/5T(c) was observed in the c-axis polarized reflectance measurement. We elaborate that there exist horizontal nodes for the superconducting gap in regions of the 3D Fermi surface that contribute dominantly to the c-axis optical conductivity. |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China; Chinese Academy of Sciences; Ministry of Science and Technology of China; U.S. Department of Energy, Division of Materials Science, Basic Energy Sciences [DOE DE-FG02-05ER46202] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45881]  |
| 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 | Cheng, B,Chen, ZG,Zhang, CL,et al. Three-dimensionality of band structure and a large residual quasiparticle population in Ba0.67K0.33Fe2As2 as revealed by c-axis polarized optical measurements[J]. PHYSICAL REVIEW B,2011,83(14). |
| APA | Cheng, B.,Chen, ZG.,Zhang, CL.,Ruan, RH.,Dong, T.,...&Wang, NL.(2011).Three-dimensionality of band structure and a large residual quasiparticle population in Ba0.67K0.33Fe2As2 as revealed by c-axis polarized optical measurements.PHYSICAL REVIEW B,83(14). |
| MLA | Cheng, B,et al."Three-dimensionality of band structure and a large residual quasiparticle population in Ba0.67K0.33Fe2As2 as revealed by c-axis polarized optical measurements".PHYSICAL REVIEW B 83.14(2011). |
入库方式： OAI收割
来源：物理研究所
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