Revealing multiple density wave orders in nonsuperconducting titanium oxypnictide Na2Ti2As2O
文献类型：期刊论文
| 作者 | Huang, Y ; Wang, HP ; Chen, RY ; Zhang, X ; Zheng, P ; Shi, YG ; Wang, NL |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:15 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Huang, Y (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We report an optical spectroscopy study on single crystals of Na2Ti2As2O, a sister compound of the superconductor BaTi2Sb2O. The study unexpectedly reveals two density wave phase transitions. The first transition, at 320 K, results in the formation of a large energy gap and removes the majority of the Fermi surfaces. But the compound remains metallic with residual itinerant carriers. Below 42 K, another density wave phase transition with a smaller energy gap scale occurs and drives the compound into the semiconducting ground state. These experiments thus enable us to shed light on the complex electronic structure in titanium oxypnictides. |
| 资助信息 | National Science Foundation of China [11120101003, 11327806]; 973 project of the Ministry of Science and Technology of China [2011CB921701, 2012CB821403] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59555]  |
| 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 | Huang, Y,Wang, HP,Chen, RY,et al. Revealing multiple density wave orders in nonsuperconducting titanium oxypnictide Na2Ti2As2O[J]. PHYSICAL REVIEW B,2014,89(15). |
| APA | Huang, Y.,Wang, HP.,Chen, RY.,Zhang, X.,Zheng, P.,...&Wang, NL.(2014).Revealing multiple density wave orders in nonsuperconducting titanium oxypnictide Na2Ti2As2O.PHYSICAL REVIEW B,89(15). |
| MLA | Huang, Y,et al."Revealing multiple density wave orders in nonsuperconducting titanium oxypnictide Na2Ti2As2O".PHYSICAL REVIEW B 89.15(2014). |
入库方式： OAI收割
来源：物理研究所
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