Enhanced superconductivity in TiO epitaxial thin films
文献类型：期刊论文
| 作者 | Zhang, Chao4; Hao, Feixiang4; Gao, Guanyin4; Liu, Xiang4; Ma, Chao4; Lin, Yue4; Yin, Yuewei4; Li, Xiaoguang4 |
| 刊名 | NPJ QUANTUM MATERIALS
 |
| 出版日期 | 2017 |
| 卷号 | 2 |
| ISSN号 | 2397-4648 |
| 英文摘要 | Titanium oxides have many fascinating optical and electrical properties, such as the superconductivity at 2 K in cubic titanium monoxide (TiO) polycrystalline bulk. However, the lack of TiO single crystals or epitaxial films has prevented systematic investigations on its superconductivity. Here, we report the basic superconductivity characterizations of cubic TiO films epitaxially grown on (0001)-oriented alpha-Al2O3 substrates. The magnetic and electronic transport measurements confirmed that TiO is a type-II superconductor and the recorded high T-c is about 7.4 K. The lower critical field (H-c1) at 1.9 K, the extrapolated upper critical field H-c2(0), and coherence length are about 18 Oe, 13.7 T, and 4.9 nm, respectively. With increasing pressure, the value of T-c shifts to lower temperature while the normal state resistivity increases. Our results on the superconducting TiO films confirm the strategy to achieve higher T-c in the epitaxial films, which may be helpful for finding more superconducting materials in various related systems. |
| 资助项目 | [Natural Science Foundation of China] ; [National Basic Research Program of China] |
| 语种 | 英语 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/124153]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.Collaborat Innovat Ctr Adv Microstruct 2.Hefei Institutes of Physical Science, Chinese Academy of Sciences 3.University of Nebraska System 4.University of Science & Technology of China, CAS |
| 推荐引用方式 GB/T 7714 | Zhang, Chao,Hao, Feixiang,Gao, Guanyin,et al. Enhanced superconductivity in TiO epitaxial thin films[J]. NPJ QUANTUM MATERIALS,2017,2. |
| APA | Zhang, Chao.,Hao, Feixiang.,Gao, Guanyin.,Liu, Xiang.,Ma, Chao.,...&Li, Xiaoguang.(2017).Enhanced superconductivity in TiO epitaxial thin films.NPJ QUANTUM MATERIALS,2. |
| MLA | Zhang, Chao,et al."Enhanced superconductivity in TiO epitaxial thin films".NPJ QUANTUM MATERIALS 2(2017). |
入库方式： OAI收割
来源：合肥物质科学研究院
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